diff --git a/man/nm-settings-nmcli.xsl b/man/nm-settings-nmcli.xsl
index 5817e8e266..5f6783d362 100644
--- a/man/nm-settings-nmcli.xsl
+++ b/man/nm-settings-nmcli.xsl
@@ -176,6 +176,11 @@
             Format: <xsl:value-of select="@type"/>
           </para>
         </xsl:if>
+        <xsl:if test="@values">
+          <para>
+            Valid values: <xsl:value-of select="@values"/>
+          </para>
+        </xsl:if>
       </listitem>
     </varlistentry>
   </xsl:template>
diff --git a/src/libnm-glib-aux/nm-enum-utils.c b/src/libnm-glib-aux/nm-enum-utils.c
index 2593a9cdfd..0d63278045 100644
--- a/src/libnm-glib-aux/nm-enum-utils.c
+++ b/src/libnm-glib-aux/nm-enum-utils.c
@@ -320,53 +320,117 @@ _nm_utils_enum_from_str_full(GType                       type,
 const char **
 _nm_utils_enum_get_values(GType type, int from, int to)
 {
-    GTypeClass *klass;
-    GPtrArray  *array;
-    int         i;
-    char        sbuf[64];
+    int        i;
+    GArray    *values_full = _nm_utils_enum_get_values_full(type, from, to, NULL);
+    GPtrArray *values      = g_ptr_array_sized_new(values_full->len + 1);
 
-    klass = g_type_class_ref(type);
-    array = g_ptr_array_new();
+    for (i = 0; i < values_full->len; i++) {
+        NMUtilsEnumValueInfoFull *v = &g_array_index(values_full, NMUtilsEnumValueInfoFull, i);
+        g_ptr_array_add(values, (gpointer) v->nick);
+    }
+
+    g_ptr_array_add(values, NULL);
+    g_array_unref(values_full);
+    return (const char **) g_ptr_array_free(values, FALSE);
+}
+
+static void
+_free_value_info_full(NMUtilsEnumValueInfoFull *value_info_full)
+{
+    g_free(value_info_full->aliases);
+}
+
+static void
+_init_value_info_full(NMUtilsEnumValueInfoFull *v, bool is_flag, const char *nick, int value)
+{
+    char        sbuf[64];
+    const char *value_str = is_flag ? g_intern_string(nm_sprintf_buf(sbuf, "0x%x", value))
+                                    : g_intern_string(nm_sprintf_buf(sbuf, "%d", value));
+
+    v->nick      = _enum_is_valid_enum_nick(nick) ? nick : value_str;
+    v->aliases   = NULL;
+    v->value_str = value_str;
+    v->value     = value;
+}
+
+/**
+ * _nm_utils_enum_get_values_full:
+ * @type: the enum or flags type
+ * @from: lowest value to return
+ * @to:   highest value to return
+ * @value_infos: (nullable): additional value aliases
+ * 
+ * Get the enum or flags values within the given range, putting together the
+ * value, name and aliases of each of them.
+ *
+ * If @value_infos is NULL, no memory will be allocated and deallocated for the
+ * aliases and #NMUtilsEnumValueInfoFull:aliases will be NULL in the returned
+ * data.
+ *
+ * The caller is responsible of releasing the container, but not the contained
+ * data. Only #NMUtilsEnumValueInfoFull:aliases can be stolen (and set to NULL),
+ * and then the caller becomes the responsible to release it.
+ * 
+ * Return: (transfer container): an array of #NMUtilsEnumValueInfoFull.
+ */
+GArray *
+_nm_utils_enum_get_values_full(GType                       type,
+                               int                         from,
+                               int                         to,
+                               const NMUtilsEnumValueInfo *value_infos)
+{
+    NMUtilsEnumValueInfoFull v;
+    GArray                  *array;
+    int                      i;
+
+    nm_auto_unref_gtypeclass GTypeClass *klass = g_type_class_ref(type);
+    g_return_val_if_fail(G_IS_ENUM_CLASS(klass) || G_IS_FLAGS_CLASS(klass), NULL);
+
+    _ASSERT_enum_values_info(type, value_infos);
+
+    array = g_array_new(FALSE, FALSE, sizeof(NMUtilsEnumValueInfoFull));
 
     if (G_IS_ENUM_CLASS(klass)) {
         GEnumClass *enum_class = G_ENUM_CLASS(klass);
-        GEnumValue *enum_value;
 
         for (i = 0; i < enum_class->n_values; i++) {
-            enum_value = &enum_class->values[i];
-            if (enum_value->value >= from && enum_value->value <= to) {
-                if (_enum_is_valid_enum_nick(enum_value->value_nick))
-                    g_ptr_array_add(array, (gpointer) enum_value->value_nick);
-                else
-                    g_ptr_array_add(
-                        array,
-                        (gpointer) g_intern_string(nm_sprintf_buf(sbuf, "%d", enum_value->value)));
-            }
-        }
-    } else if (G_IS_FLAGS_CLASS(klass)) {
-        GFlagsClass *flags_class = G_FLAGS_CLASS(klass);
-        GFlagsValue *flags_value;
+            GEnumValue *enum_val = &enum_class->values[i];
 
-        for (i = 0; i < flags_class->n_values; i++) {
-            flags_value = &flags_class->values[i];
-            if (flags_value->value >= (guint) from && flags_value->value <= (guint) to) {
-                if (_enum_is_valid_flags_nick(flags_value->value_nick))
-                    g_ptr_array_add(array, (gpointer) flags_value->value_nick);
-                else
-                    g_ptr_array_add(
-                        array,
-                        (gpointer) g_intern_string(
-                            nm_sprintf_buf(sbuf, "0x%x", (unsigned) flags_value->value)));
+            if (enum_val->value >= from && enum_val->value <= to) {
+                _init_value_info_full(&v, FALSE, enum_val->value_nick, enum_val->value);
+                g_array_append_val(array, v);
             }
         }
     } else {
-        g_type_class_unref(klass);
-        g_ptr_array_free(array, TRUE);
-        g_return_val_if_reached(NULL);
+        GFlagsClass *flags_class = G_FLAGS_CLASS(klass);
+
+        for (i = 0; i < flags_class->n_values; i++) {
+            GFlagsValue *flags_val = &flags_class->values[i];
+
+            if (flags_val->value >= (guint) from && flags_val->value <= (guint) to) {
+                _init_value_info_full(&v, TRUE, flags_val->value_nick, flags_val->value);
+                g_array_append_val(array, v);
+            }
+        }
     }
 
-    g_type_class_unref(klass);
-    g_ptr_array_add(array, NULL);
+    if (value_infos) {
+        g_array_set_clear_func(array, (GDestroyNotify) _free_value_info_full);
 
-    return (const char **) g_ptr_array_free(array, FALSE);
+        for (i = 0; i < array->len; i++) {
+            NMUtilsEnumValueInfoFull *vi_full = &g_array_index(array, NMUtilsEnumValueInfoFull, i);
+            GPtrArray                *aliases = g_ptr_array_new();
+
+            const NMUtilsEnumValueInfo *vi;
+            for (vi = value_infos; vi && vi->nick; vi++) {
+                if (vi->value == vi_full->value)
+                    g_ptr_array_add(aliases, (gpointer) vi->nick);
+            }
+
+            g_ptr_array_add(aliases, NULL);
+            vi_full->aliases = (const char **) g_ptr_array_free(aliases, FALSE);
+        }
+    }
+
+    return array;
 }
diff --git a/src/libnm-glib-aux/nm-enum-utils.h b/src/libnm-glib-aux/nm-enum-utils.h
index 6478cadfd8..a90e13fe2b 100644
--- a/src/libnm-glib-aux/nm-enum-utils.h
+++ b/src/libnm-glib-aux/nm-enum-utils.h
@@ -15,6 +15,13 @@ typedef struct _NMUtilsEnumValueInfo {
     int         value;
 } NMUtilsEnumValueInfo;
 
+typedef struct _NMUtilsEnumValueInfoFull {
+    const char  *nick;
+    const char **aliases;
+    const char  *value_str;
+    int          value;
+} NMUtilsEnumValueInfoFull;
+
 char    *_nm_utils_enum_to_str_full(GType                       type,
                                     int                         value,
                                     const char                 *sep,
@@ -27,6 +34,11 @@ gboolean _nm_utils_enum_from_str_full(GType                       type,
 
 const char **_nm_utils_enum_get_values(GType type, int from, int to);
 
+GArray *_nm_utils_enum_get_values_full(GType                       type,
+                                       int                         from,
+                                       int                         to,
+                                       const NMUtilsEnumValueInfo *value_infos);
+
 /*****************************************************************************/
 
 #endif /* __NM_ENUM_UTILS_H__ */
diff --git a/src/libnmc-setting/nm-meta-setting-desc.c b/src/libnmc-setting/nm-meta-setting-desc.c
index ebcb1ba507..afe74045be 100644
--- a/src/libnmc-setting/nm-meta-setting-desc.c
+++ b/src/libnmc-setting/nm-meta-setting-desc.c
@@ -46,22 +46,16 @@ _gobject_property_get_gtype(GObject *gobject, const char *property_name)
     g_return_val_if_reached(G_TYPE_INVALID);
 }
 
-static GType
-_gtype_property_get_gtype(GType gtype, const char *property_name)
+static GParamSpec *
+_property_get_spec(const NMMetaPropertyInfo *property_info)
 {
-    /* given @gtype, a type for a GObject, lookup the property @property_name
-     * and return its value_type. */
-    if (G_TYPE_IS_CLASSED(gtype)) {
-        GParamSpec                          *param_spec;
-        nm_auto_unref_gtypeclass GTypeClass *gtypeclass = g_type_class_ref(gtype);
+    nm_auto_unref_gtypeclass NMSettingClass *setting_class =
+        g_type_class_ref(property_info->setting_info->general->get_setting_gtype());
+    GParamSpec *param_spec =
+        g_object_class_find_property(G_OBJECT_CLASS(setting_class), property_info->property_name);
 
-        if (G_IS_OBJECT_CLASS(gtypeclass)) {
-            param_spec = g_object_class_find_property(G_OBJECT_CLASS(gtypeclass), property_name);
-            if (param_spec)
-                return param_spec->value_type;
-        }
-    }
-    g_return_val_if_reached(G_TYPE_INVALID);
+    nm_assert(param_spec);
+    return param_spec;
 }
 
 /*****************************************************************************/
@@ -1225,6 +1219,113 @@ _get_fcn_gobject_enum(ARGS_GET_FCN)
 
 /*****************************************************************************/
 
+/**
+ * nm_meta_property_int_get_range:
+ * @property_info: a #NMMetaProperty info of a int, uint, int64 or uint64 property
+ * @out_min: (out): low value of the property's valid range
+ * @out_max: (out): high value of the property's valid range
+ *
+ * Returns: FALSE if the full range of the type is returned, TRUE if it's smaller
+ */
+gboolean
+nm_meta_property_int_get_range(const NMMetaPropertyInfo *property_info,
+                               NMMetaSignUnsignInt64    *out_min,
+                               NMMetaSignUnsignInt64    *out_max)
+{
+    GParamSpec *pspec = _property_get_spec(property_info);
+
+    g_return_val_if_fail(
+        NM_IN_SET(pspec->value_type, G_TYPE_UINT, G_TYPE_UINT64, G_TYPE_INT, G_TYPE_INT64),
+        FALSE);
+
+    if (property_info->property_typ_data
+        && (property_info->property_typ_data->subtype.gobject_int.min.u64
+            || property_info->property_typ_data->subtype.gobject_int.max.u64)) {
+        *out_min = property_info->property_typ_data->subtype.gobject_int.min;
+        *out_max = property_info->property_typ_data->subtype.gobject_int.max;
+        return TRUE;
+    }
+
+    switch (pspec->value_type) {
+    case G_TYPE_UINT:
+        out_min->u64 = ((GParamSpecUInt *) pspec)->minimum;
+        out_max->u64 = ((GParamSpecUInt *) pspec)->maximum;
+        return out_min->u64 != 0 || out_max->u64 != G_MAXUINT;
+    case G_TYPE_UINT64:
+        out_min->u64 = ((GParamSpecUInt64 *) pspec)->minimum;
+        out_max->u64 = ((GParamSpecUInt64 *) pspec)->maximum;
+        return out_min->u64 != 0 || out_max->u64 != G_MAXUINT64;
+    case G_TYPE_INT:
+        out_min->i64 = ((GParamSpecInt *) pspec)->minimum;
+        out_max->i64 = ((GParamSpecInt *) pspec)->maximum;
+        return out_min->i64 != G_MININT || out_max->i64 != G_MAXINT;
+    case G_TYPE_INT64:
+        out_min->i64 = ((GParamSpecInt64 *) pspec)->minimum;
+        out_max->i64 = ((GParamSpecInt64 *) pspec)->maximum;
+        return out_min->i64 != G_MININT64 || out_max->i64 != G_MAXINT64;
+    default:
+        g_return_val_if_reached(FALSE);
+    }
+}
+
+/**
+ * nm_meta_property_enum_get_type:
+ * @property_info: a #NMMetaPropertyInfo of an enum or flags type property
+ *
+ * Returns: the #GType of the property, or G_TYPE_INVALID on error
+ */
+GType
+nm_meta_property_enum_get_type(const NMMetaPropertyInfo *property_info)
+{
+    GType gtype = _property_get_spec(property_info)->value_type;
+
+    if (property_info->property_typ_data
+        && property_info->property_typ_data->subtype.gobject_enum.get_gtype) {
+        /* if the property is already enum, don't set get_gtype: it's redundant and error prone */
+        g_return_val_if_fail(NM_IN_SET(gtype, G_TYPE_INT, G_TYPE_UINT), G_TYPE_INVALID);
+        return property_info->property_typ_data->subtype.gobject_enum.get_gtype();
+    }
+
+    g_return_val_if_fail(G_TYPE_IS_ENUM(gtype) || G_TYPE_IS_FLAGS(gtype), G_TYPE_INVALID);
+    return gtype;
+}
+
+/**
+ * nm_meta_property_enum_get_range:
+ * @property_info: a #NMMetaProperty info of an enum or flags type property
+ * @out_min: (out): low value of the property's valid range
+ * @out_max: (out): high value of the property's valid range
+ *
+ * Returns: FALSE if the full range of the type is returned, TRUE if it's smaller
+ */
+gboolean
+nm_meta_property_enum_get_range(const NMMetaPropertyInfo *property_info, int *out_min, int *out_max)
+{
+    GType gtype = nm_meta_property_enum_get_type(property_info);
+
+    if (property_info->property_typ_data
+        && (property_info->property_typ_data->subtype.gobject_enum.min
+            || property_info->property_typ_data->subtype.gobject_enum.max)) {
+        *out_min = property_info->property_typ_data->subtype.gobject_enum.min;
+        *out_max = property_info->property_typ_data->subtype.gobject_enum.max;
+        return TRUE;
+    }
+
+    if (G_TYPE_IS_ENUM(gtype)) {
+        *out_min = G_MININT;
+        *out_max = G_MAXINT;
+    } else if (G_TYPE_IS_FLAGS(gtype)) {
+        *out_min = 0;
+        *out_max = (int) G_MAXUINT;
+    } else {
+        g_assert_not_reached();
+    }
+
+    return FALSE;
+}
+
+/*****************************************************************************/
+
 static gboolean
 _set_fcn_gobject_string(ARGS_SET_FCN)
 {
@@ -1318,10 +1419,9 @@ _set_fcn_gobject_int(ARGS_SET_FCN)
     nm_auto_unset_gvalue GValue    gval = G_VALUE_INIT;
     gboolean                       is_uint64;
     NMMetaSignUnsignInt64          v;
-    gboolean                       has_minmax = FALSE;
-    NMMetaSignUnsignInt64          min        = {0};
-    NMMetaSignUnsignInt64          max        = {0};
-    guint                          base       = 10;
+    NMMetaSignUnsignInt64          min  = {0};
+    NMMetaSignUnsignInt64          max  = {0};
+    guint                          base = 10;
     const NMMetaUtilsIntValueInfo *value_infos;
 
     if (_SET_FCN_DO_RESET_DEFAULT(property_info, modifier, value))
@@ -1351,53 +1451,9 @@ _set_fcn_gobject_int(ARGS_SET_FCN)
 
         if (property_info->property_typ_data->subtype.gobject_int.base > 0)
             base = property_info->property_typ_data->subtype.gobject_int.base;
-
-        if ((is_uint64
-             && (property_info->property_typ_data->subtype.gobject_int.min.u64
-                 || property_info->property_typ_data->subtype.gobject_int.max.u64))
-            || (!is_uint64
-                && (property_info->property_typ_data->subtype.gobject_int.min.i64
-                    || property_info->property_typ_data->subtype.gobject_int.max.i64))) {
-            min        = property_info->property_typ_data->subtype.gobject_int.min;
-            max        = property_info->property_typ_data->subtype.gobject_int.max;
-            has_minmax = TRUE;
-        }
     }
 
-    if (!has_minmax) {
-        switch (pspec->value_type) {
-        case G_TYPE_INT:
-        {
-            const GParamSpecInt *p = (GParamSpecInt *) pspec;
-
-            min.i64 = p->minimum;
-            max.i64 = p->maximum;
-        } break;
-        case G_TYPE_UINT:
-        {
-            const GParamSpecUInt *p = (GParamSpecUInt *) pspec;
-
-            min.u64 = p->minimum;
-            max.u64 = p->maximum;
-        } break;
-        case G_TYPE_INT64:
-        {
-            const GParamSpecInt64 *p = (GParamSpecInt64 *) pspec;
-
-            min.i64 = p->minimum;
-            max.i64 = p->maximum;
-        } break;
-        case G_TYPE_UINT64:
-        {
-            const GParamSpecUInt64 *p = (GParamSpecUInt64 *) pspec;
-
-            min.u64 = p->minimum;
-            max.u64 = p->maximum;
-        } break;
-        default:
-            g_return_val_if_reached(FALSE);
-        }
-    }
+    nm_meta_property_int_get_range(property_info, &min, &max);
 
     if (is_uint64)
         v.u64 = _nm_utils_ascii_str_to_uint64(value, base, min.u64, max.u64, 0);
@@ -1629,26 +1685,12 @@ _set_fcn_gobject_enum(ARGS_SET_FCN)
 
 fail:
     if (error) {
-        gs_free const char **valid_all  = NULL;
-        gs_free const char  *valid_str  = NULL;
-        gboolean             has_minmax = FALSE;
-        int                  min        = G_MININT;
-        int                  max        = G_MAXINT;
-
-        if (property_info->property_typ_data) {
-            if (property_info->property_typ_data->subtype.gobject_enum.min
-                || property_info->property_typ_data->subtype.gobject_enum.max) {
-                min        = property_info->property_typ_data->subtype.gobject_enum.min;
-                max        = property_info->property_typ_data->subtype.gobject_enum.max;
-                has_minmax = TRUE;
-            }
-        }
-
-        if (!has_minmax && is_flags) {
-            min = 0;
-            max = (int) G_MAXUINT;
-        }
+        gs_free const char **valid_all = NULL;
+        gs_free const char  *valid_str = NULL;
+        int                  min;
+        int                  max;
 
+        nm_meta_property_enum_get_range(property_info, &min, &max);
         valid_all = nm_utils_enum_get_values(gtype, min, max);
         valid_str = g_strjoinv(",", (char **) valid_all);
         if (is_flags) {
@@ -1674,40 +1716,13 @@ static const char *const *
 _values_fcn_gobject_enum(ARGS_VALUES_FCN)
 {
     const NMUtilsEnumValueInfo *value_infos = NULL;
-    GType                       gtype       = 0;
-    gboolean                    has_gtype   = FALSE;
-    gboolean                    has_minmax  = FALSE;
-    int                         min         = G_MININT;
-    int                         max         = G_MAXINT;
+    GType                       gtype;
+    int                         min;
+    int                         max;
     char                      **v;
 
-    if (property_info->property_typ_data) {
-        if (property_info->property_typ_data->subtype.gobject_enum.min
-            || property_info->property_typ_data->subtype.gobject_enum.max) {
-            min        = property_info->property_typ_data->subtype.gobject_enum.min;
-            max        = property_info->property_typ_data->subtype.gobject_enum.max;
-            has_minmax = TRUE;
-        }
-        if (property_info->property_typ_data->subtype.gobject_enum.get_gtype) {
-            gtype     = property_info->property_typ_data->subtype.gobject_enum.get_gtype();
-            has_gtype = TRUE;
-        }
-    }
-
-    if (!has_gtype) {
-        gtype = _gtype_property_get_gtype(property_info->setting_info->general->get_setting_gtype(),
-                                          property_info->property_name);
-    }
-
-    if (!has_minmax && G_TYPE_IS_CLASSED(gtype)) {
-        nm_auto_unref_gtypeclass GTypeClass *class = NULL;
-
-        class = g_type_class_ref(gtype);
-        if (G_IS_FLAGS_CLASS(class)) {
-            min = 0;
-            max = (int) G_MAXUINT;
-        }
-    }
+    gtype = nm_meta_property_enum_get_type(property_info);
+    nm_meta_property_enum_get_range(property_info, &min, &max);
 
     /* There is a problem. For flags, we don't expand to all the values that we could
      * complete for. We only expand to a single flag "FLAG1", but if the property
diff --git a/src/libnmc-setting/nm-meta-setting-desc.h b/src/libnmc-setting/nm-meta-setting-desc.h
index 5f5ab7b357..d27c64fe5e 100644
--- a/src/libnmc-setting/nm-meta-setting-desc.h
+++ b/src/libnmc-setting/nm-meta-setting-desc.h
@@ -505,6 +505,16 @@ const NMMetaSettingValidPartItem *const *
 nm_meta_setting_info_valid_parts_for_slave_type(const char  *slave_type,
                                                 const char **out_slave_name);
 
+gboolean nm_meta_property_int_get_range(const NMMetaPropertyInfo *property_info,
+                                        NMMetaSignUnsignInt64    *out_min,
+                                        NMMetaSignUnsignInt64    *out_max);
+
+gboolean nm_meta_property_enum_get_range(const NMMetaPropertyInfo *property_info,
+                                         int                      *out_min,
+                                         int                      *out_max);
+
+GType nm_meta_property_enum_get_type(const NMMetaPropertyInfo *property_info);
+
 /*****************************************************************************/
 
 typedef enum {
diff --git a/src/nmcli/gen-metadata-nm-settings-nmcli.c b/src/nmcli/gen-metadata-nm-settings-nmcli.c
index d824132935..f81bb6ee28 100644
--- a/src/nmcli/gen-metadata-nm-settings-nmcli.c
+++ b/src/nmcli/gen-metadata-nm-settings-nmcli.c
@@ -4,6 +4,7 @@
 
 #include "libnmc-setting/nm-meta-setting-desc.h"
 #include "libnmc-setting/nm-meta-setting-base.h"
+#include "libnm-glib-aux/nm-enum-utils.h"
 #include "nm-core-enum-types.h"
 #include <stdarg.h>
 #include <stdlib.h>
@@ -70,7 +71,7 @@ _property_get_gtype(const NMMetaPropertyInfo *prop_info)
 }
 
 static char *
-_get_enum_format(GType g_type)
+get_enum_format(GType g_type)
 {
     if (G_TYPE_IS_FLAGS(g_type))
         return g_strdup_printf("flags (%s)", g_type_name(g_type));
@@ -78,22 +79,6 @@ _get_enum_format(GType g_type)
         return g_strdup_printf("choice (%s)", g_type_name(g_type));
 }
 
-static char *
-get_enum_format(const NMMetaPropertyInfo *prop_info)
-{
-    GType                        gtype         = G_TYPE_INVALID;
-    const NMMetaPropertyTypData *prop_typ_data = prop_info->property_typ_data;
-
-    if (prop_typ_data && prop_typ_data->subtype.gobject_enum.get_gtype)
-        gtype = prop_typ_data->subtype.gobject_enum.get_gtype();
-    else
-        gtype = _property_get_gtype(prop_info);
-
-    prop_assert(gtype != G_TYPE_INVALID, prop_info, "unknown property's enum type");
-
-    return _get_enum_format(gtype);
-}
-
 static char *
 get_mac_format(const NMMetaPropertyInfo *prop_info)
 {
@@ -185,11 +170,11 @@ get_property_format(const NMMetaPropertyInfo *prop_info)
     case NM_META_PROPERTY_TYPE_FORMAT_STRING:
         return g_strdup("string");
     case NM_META_PROPERTY_TYPE_FORMAT_ENUM:
-        return get_enum_format(prop_info);
+        return get_enum_format(nm_meta_property_enum_get_type(prop_info));
     case NM_META_PROPERTY_TYPE_FORMAT_SECRET_FLAGS:
-        return _get_enum_format(NM_TYPE_SETTING_SECRET_FLAGS);
+        return get_enum_format(NM_TYPE_SETTING_SECRET_FLAGS);
     case NM_META_PROPERTY_TYPE_FORMAT_DCB_FLAGS:
-        return _get_enum_format(NM_TYPE_SETTING_DCB_FLAGS);
+        return get_enum_format(NM_TYPE_SETTING_DCB_FLAGS);
     case NM_META_PROPERTY_TYPE_FORMAT_BOOL:
         return g_strdup("boolean");
     case NM_META_PROPERTY_TYPE_FORMAT_TERNARY:
@@ -224,6 +209,199 @@ get_property_format(const NMMetaPropertyInfo *prop_info)
     }
 }
 
+#define append_vals(to, ...)                          \
+    G_STMT_START                                      \
+    {                                                 \
+        size_t      i;                                \
+        const char *from[] = {__VA_ARGS__};           \
+        for (i = 0; i < NM_N_ELEMENTS(from); i++)     \
+            g_ptr_array_add((to), g_strdup(from[i])); \
+    }                                                 \
+    G_STMT_END
+
+static void
+append_connection_types(GPtrArray *valid_values)
+{
+    size_t i;
+    for (i = 0; i < _NM_META_SETTING_TYPE_NUM; i++) {
+        /* If the setting has a priority of a base-type, it's a valid value for connection.type */
+        NMSettingPriority pri =
+            _nm_setting_type_get_base_type_priority(nm_meta_setting_infos[i].get_setting_gtype());
+        if (pri != NM_SETTING_PRIORITY_INVALID)
+            g_ptr_array_add(valid_values, g_strdup(nm_meta_setting_infos[i].setting_name));
+    }
+}
+
+static void
+append_int_valid_range(const NMMetaPropertyInfo *prop_info, GPtrArray *valid_values)
+{
+    NMMetaSignUnsignInt64 min;
+    NMMetaSignUnsignInt64 max;
+
+    nm_meta_property_int_get_range(prop_info, &min, &max);
+    if (NM_IN_SET(_property_get_gtype(prop_info), G_TYPE_UINT, G_TYPE_UINT64))
+        g_ptr_array_add(valid_values, g_strdup_printf("%lu - %lu", min.u64, max.u64));
+    else
+        g_ptr_array_add(valid_values, g_strdup_printf("%ld - %ld", min.i64, max.i64));
+}
+
+static void
+_append_enum_valid_values(GType                       g_type,
+                          int                         min,
+                          int                         max,
+                          const NMUtilsEnumValueInfo *value_infos,
+                          GPtrArray                  *valid_values)
+{
+    size_t       i;
+    const char **alias;
+    GString     *names  = g_string_sized_new(64);
+    GArray      *values = _nm_utils_enum_get_values_full(g_type, min, max, value_infos);
+
+    for (i = 0; i < values->len; i++) {
+        NMUtilsEnumValueInfoFull *val = &g_array_index(values, NMUtilsEnumValueInfoFull, i);
+
+        g_string_assign(names, val->nick);
+
+        if (val->aliases) {
+            for (alias = val->aliases; *alias; alias++) {
+                g_string_append_c(names, '/');
+                g_string_append(names, *alias);
+            }
+        }
+
+        g_ptr_array_add(valid_values, g_strdup_printf("%s (%s)", names->str, val->value_str));
+    }
+
+    g_string_free(names, TRUE);
+    g_array_unref(values);
+}
+
+static void
+append_enum_valid_values(const NMMetaPropertyInfo *prop_info, GPtrArray *valid_values)
+{
+    const NMMetaPropertyTypData *prop_typ_data = prop_info->property_typ_data;
+    const NMUtilsEnumValueInfo  *value_infos;
+    GType                        gtype;
+    int                          min;
+    int                          max;
+
+    gtype = nm_meta_property_enum_get_type(prop_info);
+    nm_meta_property_enum_get_range(prop_info, &min, &max);
+    value_infos = prop_typ_data ? prop_typ_data->subtype.gobject_enum.value_infos : NULL;
+
+    _append_enum_valid_values(gtype, min, max, value_infos, valid_values);
+}
+
+static void
+append_ethtool_valid_values(const NMMetaPropertyInfo *prop_info, GPtrArray *valid_values)
+{
+    NMEthtoolID ethtool_id;
+
+    prop_assert(prop_info->property_typ_data, prop_info, "missing .property_typ_data");
+
+    ethtool_id = prop_info->property_typ_data->subtype.ethtool.ethtool_id;
+
+    if (nm_ethtool_id_is_coalesce(ethtool_id) || nm_ethtool_id_is_ring(ethtool_id))
+        g_ptr_array_add(valid_values, g_strdup_printf("0 - %u", G_MAXUINT32));
+    else if (nm_ethtool_id_is_feature(ethtool_id) || nm_ethtool_id_is_pause(ethtool_id))
+        append_vals(valid_values, "on", "off", "ignore");
+}
+
+static void
+append_dcb_valid_values(const NMMetaPropertyInfo *prop_info, GPtrArray *valid_values)
+{
+    guint max;
+    guint other;
+
+    prop_assert(prop_info->property_typ_data, prop_info, "missing .property_typ_data");
+
+    max   = prop_info->property_typ_data->subtype.dcb.max;
+    other = prop_info->property_typ_data->subtype.dcb.other;
+
+    if (max != 0)
+        g_ptr_array_add(valid_values, g_strdup_printf("0 - %u", max));
+    if (other != 0 && (!max || other > max))
+        g_ptr_array_add(valid_values, g_strdup_printf("%u", other));
+}
+
+static GPtrArray *
+get_property_valid_values(const NMMetaPropertyInfo *prop_info)
+{
+    const NMMetaPropertyType    *prop_type     = prop_info->property_type;
+    const NMMetaPropertyTypData *prop_typ_data = prop_info->property_typ_data;
+    NMMetaPropertyTypeFormat     fmt           = prop_type->doc_format;
+    GPtrArray                   *valid_values  = g_ptr_array_new_full(16, g_free);
+
+    /* connection.type is generated differently */
+    if (prop_info->setting_info->general->meta_type == NM_META_SETTING_TYPE_CONNECTION
+        && !nm_strcmp0(prop_info->property_name, "type")) {
+        append_connection_types(valid_values);
+        return valid_values;
+    }
+
+    /* If it's a list, get the format of the items, but only  if we can process it
+     * (prop_typ_data->subtype is of type multilist, so we can't process ints or enums) */
+    if (fmt == NM_META_PROPERTY_TYPE_FORMAT_MULTILIST && prop_typ_data) {
+        switch (prop_typ_data->list_items_doc_format) {
+        case NM_META_PROPERTY_TYPE_FORMAT_SECRET_FLAGS:
+        case NM_META_PROPERTY_TYPE_FORMAT_DCB_FLAGS:
+        case NM_META_PROPERTY_TYPE_FORMAT_BOOL:
+        case NM_META_PROPERTY_TYPE_FORMAT_DCB_BOOL:
+        case NM_META_PROPERTY_TYPE_FORMAT_TERNARY:
+        case NM_META_PROPERTY_TYPE_FORMAT_ETHTOOL:
+            fmt = prop_typ_data->list_items_doc_format;
+            break;
+        case NM_META_PROPERTY_TYPE_FORMAT_ENUM:
+            prop_warn(prop_info, "unknown enum type, can't get valid values");
+            break;
+        case NM_META_PROPERTY_TYPE_FORMAT_INT:
+            prop_warn(prop_info, "can't check for valid range in multilists");
+            break;
+        default:
+            /* Other types probably don't need to show "Valid values" */
+            break;
+        }
+    }
+
+    switch (fmt) {
+    case NM_META_PROPERTY_TYPE_FORMAT_INT:
+        append_int_valid_range(prop_info, valid_values);
+        break;
+    case NM_META_PROPERTY_TYPE_FORMAT_ENUM:
+        append_enum_valid_values(prop_info, valid_values);
+        break;
+    case NM_META_PROPERTY_TYPE_FORMAT_SECRET_FLAGS:
+        _append_enum_valid_values(NM_TYPE_SETTING_SECRET_FLAGS, 0, G_MAXUINT, NULL, valid_values);
+        break;
+    case NM_META_PROPERTY_TYPE_FORMAT_DCB_FLAGS:
+        _append_enum_valid_values(NM_TYPE_SETTING_DCB_FLAGS, 0, G_MAXUINT, NULL, valid_values);
+        break;
+    case NM_META_PROPERTY_TYPE_FORMAT_BOOL:
+    case NM_META_PROPERTY_TYPE_FORMAT_DCB_BOOL:
+        append_vals(valid_values, "true/yes/on", "false/no/off");
+        break;
+    case NM_META_PROPERTY_TYPE_FORMAT_TERNARY:
+        append_vals(valid_values, "true/yes/on", "false/no/off", "default/unknown");
+        break;
+    case NM_META_PROPERTY_TYPE_FORMAT_ETHTOOL:
+        append_ethtool_valid_values(prop_info, valid_values);
+        break;
+    case NM_META_PROPERTY_TYPE_FORMAT_DCB:
+        append_dcb_valid_values(prop_info, valid_values);
+        break;
+    default:
+        break;
+    }
+
+    if (prop_typ_data && prop_typ_data->values_static) {
+        const char *const *v;
+        for (v = prop_typ_data->values_static; *v; v++)
+            g_ptr_array_add(valid_values, g_strdup(*v));
+    }
+
+    return valid_values;
+}
+
 int
 main(int argc, char *argv[])
 {
@@ -246,11 +424,13 @@ main(int argc, char *argv[])
         g_print(" >\n");
 
         for (i_property = 0; i_property < sett_info->properties_num; i_property++) {
-            const NMMetaPropertyInfo *prop_info = sett_info->properties[i_property];
-            gs_free char             *name      = NULL;
-            gs_free char             *alias     = NULL;
-            gs_free char             *descr     = NULL;
-            gs_free char             *fmt       = NULL;
+            const NMMetaPropertyInfo    *prop_info = sett_info->properties[i_property];
+            gs_free char                *name      = NULL;
+            gs_free char                *alias     = NULL;
+            gs_free char                *descr     = NULL;
+            gs_free char                *fmt       = NULL;
+            gs_unref_ptrarray GPtrArray *vals_arr  = NULL;
+            gs_free char                *vals_str  = NULL;
 
             g_print("%s<property", _indent_level(2 * INDENT));
             g_print(" name=%s", name = _xml_escape_attribute(prop_info->property_name));
@@ -281,6 +461,15 @@ main(int argc, char *argv[])
                         _indent_level(2 * INDENT + 10),
                         _xml_escape_attribute(fmt));
 
+            vals_arr = get_property_valid_values(prop_info);
+            if (vals_arr->len) {
+                g_ptr_array_add(vals_arr, NULL);
+                vals_str = g_strjoinv(", ", (char **) vals_arr->pdata);
+                g_print("\n%svalues=%s",
+                        _indent_level(2 * INDENT + 10),
+                        _xml_escape_attribute(vals_str));
+            }
+
             g_print(" />\n");
         }
 
diff --git a/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in b/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in
index 5fe55f2f8e..cbf3345b12 100644
--- a/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in
+++ b/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in
@@ -14,7 +14,8 @@
         <property name="channel"
                   alias="channel"
                   nmcli-description="Channel on which the mesh network to join is located."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="dhcp-anycast-address"
                   alias="dhcp-anycast"
                   nmcli-description="Anycast DHCP MAC address used when requesting an IP address via DHCP. The specific anycast address used determines which DHCP server class answers the request. This is currently only implemented by dhclient DHCP plugin."
@@ -29,13 +30,16 @@
         <property name="mode"
                   alias="mode"
                   nmcli-description="Wi-Fi network mode; one of &quot;infrastructure&quot;, &quot;mesh&quot;, &quot;adhoc&quot; or &quot;ap&quot;.  If blank, infrastructure is assumed."
-                  format="string" />
+                  format="string"
+                  values="infrastructure, adhoc, ap, mesh" />
         <property name="band"
                   nmcli-description="802.11 frequency band of the network.  One of &quot;a&quot; for 5GHz 802.11a or &quot;bg&quot; for 2.4GHz 802.11.  This will lock associations to the Wi-Fi network to the specific band, i.e. if &quot;a&quot; is specified, the device will not associate with the same network in the 2.4GHz band even if the network&apos;s settings are compatible.  This setting depends on specific driver capability and may not work with all drivers."
-                  format="string" />
+                  format="string"
+                  values="a, bg" />
         <property name="channel"
                   nmcli-description="Wireless channel to use for the Wi-Fi connection.  The device will only join (or create for Ad-Hoc networks) a Wi-Fi network on the specified channel.  Because channel numbers overlap between bands, this property also requires the &quot;band&quot; property to be set."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="bssid"
                   nmcli-description="If specified, directs the device to only associate with the given access point.  This capability is highly driver dependent and not supported by all devices.  Note: this property does not control the BSSID used when creating an Ad-Hoc network and is unlikely to in the future. Locking a client profile to a certain BSSID will prevent roaming and also disable background scanning. That can be useful, if there is only one access point for the SSID."
                   format="MAC address" />
@@ -55,7 +59,8 @@
                   format="list of MAC addresses" />
         <property name="mac-address-randomization"
                   nmcli-description="One of NM_SETTING_MAC_RANDOMIZATION_DEFAULT (0) (never randomize unless the user has set a global default to randomize and the supplicant supports randomization),  NM_SETTING_MAC_RANDOMIZATION_NEVER (1) (never randomize the MAC address), or NM_SETTING_MAC_RANDOMIZATION_ALWAYS (2) (always randomize the MAC address)."
-                  format="choice (NMSettingMacRandomization)" />
+                  format="choice (NMSettingMacRandomization)"
+                  values="default (0), never (1), always (2)" />
         <property name="mtu"
                   alias="mtu"
                   nmcli-description="If non-zero, only transmit packets of the specified size or smaller, breaking larger packets up into multiple Ethernet frames."
@@ -65,40 +70,51 @@
                   format="read only" />
         <property name="hidden"
                   nmcli-description="If TRUE, indicates that the network is a non-broadcasting network that hides its SSID. This works both in infrastructure and AP mode. In infrastructure mode, various workarounds are used for a more reliable discovery of hidden networks, such as probe-scanning the SSID.  However, these workarounds expose inherent insecurities with hidden SSID networks, and thus hidden SSID networks should be used with caution. In AP mode, the created network does not broadcast its SSID. Note that marking the network as hidden may be a privacy issue for you (in infrastructure mode) or client stations (in AP mode), as the explicit probe-scans are distinctly recognizable on the air."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="powersave"
                   nmcli-description="One of NM_SETTING_WIRELESS_POWERSAVE_DISABLE (2) (disable Wi-Fi power saving), NM_SETTING_WIRELESS_POWERSAVE_ENABLE (3) (enable Wi-Fi power saving), NM_SETTING_WIRELESS_POWERSAVE_IGNORE (1) (don&apos;t touch currently configure setting) or NM_SETTING_WIRELESS_POWERSAVE_DEFAULT (0) (use the globally configured value). All other values are reserved."
-                  format="choice (NMSettingWirelessPowersave)" />
+                  format="choice (NMSettingWirelessPowersave)"
+                  values="default (0), ignore (1), disable (2), enable (3)" />
         <property name="wake-on-wlan"
                   nmcli-description="The NMSettingWirelessWakeOnWLan options to enable. Not all devices support all options. May be any combination of NM_SETTING_WIRELESS_WAKE_ON_WLAN_ANY (0x2), NM_SETTING_WIRELESS_WAKE_ON_WLAN_DISCONNECT (0x4), NM_SETTING_WIRELESS_WAKE_ON_WLAN_MAGIC (0x8), NM_SETTING_WIRELESS_WAKE_ON_WLAN_GTK_REKEY_FAILURE (0x10), NM_SETTING_WIRELESS_WAKE_ON_WLAN_EAP_IDENTITY_REQUEST (0x20), NM_SETTING_WIRELESS_WAKE_ON_WLAN_4WAY_HANDSHAKE (0x40), NM_SETTING_WIRELESS_WAKE_ON_WLAN_RFKILL_RELEASE (0x80), NM_SETTING_WIRELESS_WAKE_ON_WLAN_TCP (0x100) or the special values NM_SETTING_WIRELESS_WAKE_ON_WLAN_DEFAULT (0x1) (to use global settings) and NM_SETTING_WIRELESS_WAKE_ON_WLAN_IGNORE (0x8000) (to disable management of Wake-on-LAN in NetworkManager)."
-                  format="flags (NMSettingWirelessWakeOnWLan)" />
+                  format="flags (NMSettingWirelessWakeOnWLan)"
+                  values="any (0x2), disconnect (0x4), magic (0x8), gtk-rekey-failure (0x10), eap-identity-request (0x20), 4way-handshake (0x40), rfkill-release (0x80), tcp (0x100), all (0x1fe), default (0x1), ignore (0x8000)" />
         <property name="ap-isolation"
                   nmcli-description="Configures AP isolation, which prevents communication between wireless devices connected to this AP. This property can be set to a value different from NM_TERNARY_DEFAULT (-1) only when the interface is configured in AP mode. If set to NM_TERNARY_TRUE (1), devices are not able to communicate with each other. This increases security because it protects devices against attacks from other clients in the network. At the same time, it prevents devices to access resources on the same wireless networks as file shares, printers, etc. If set to NM_TERNARY_FALSE (0), devices can talk to each other. When set to NM_TERNARY_DEFAULT (-1), the global default is used; in case the global default is unspecified it is assumed to be NM_TERNARY_FALSE (0)."
-                  format="ternary" />
+                  format="ternary"
+                  values="true/yes/on, false/no/off, default/unknown" />
     </setting>
     <setting name="802-11-wireless-security"
              alias="wifi-sec" >
         <property name="key-mgmt"
                   nmcli-description="Key management used for the connection. One of &quot;none&quot; (WEP or no password protection), &quot;ieee8021x&quot; (Dynamic WEP), &quot;owe&quot; (Opportunistic Wireless Encryption), &quot;wpa-psk&quot; (WPA2 + WPA3 personal), &quot;sae&quot; (WPA3 personal only), &quot;wpa-eap&quot; (WPA2 + WPA3 enterprise) or &quot;wpa-eap-suite-b-192&quot; (WPA3 enterprise only). This property must be set for any Wi-Fi connection that uses security."
-                  format="string" />
+                  format="string"
+                  values="none, ieee8021x, wpa-psk, wpa-eap, wpa-eap-suite-b-192, sae, owe" />
         <property name="wep-tx-keyidx"
                   nmcli-description="When static WEP is used (ie, key-mgmt = &quot;none&quot;) and a non-default WEP key index is used by the AP, put that WEP key index here.  Valid values are 0 (default key) through 3.  Note that some consumer access points (like the Linksys WRT54G) number the keys 1 - 4."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 3" />
         <property name="auth-alg"
                   nmcli-description="When WEP is used (ie, key-mgmt = &quot;none&quot; or &quot;ieee8021x&quot;) indicate the 802.11 authentication algorithm required by the AP here.  One of &quot;open&quot; for Open System, &quot;shared&quot; for Shared Key, or &quot;leap&quot; for Cisco LEAP.  When using Cisco LEAP (ie, key-mgmt = &quot;ieee8021x&quot; and auth-alg = &quot;leap&quot;) the &quot;leap-username&quot; and &quot;leap-password&quot; properties must be specified."
-                  format="string" />
+                  format="string"
+                  values="open, shared, leap" />
         <property name="proto"
                   nmcli-description="List of strings specifying the allowed WPA protocol versions to use. Each element may be one &quot;wpa&quot; (allow WPA) or &quot;rsn&quot; (allow WPA2/RSN).  If not specified, both WPA and RSN connections are allowed."
-                  format="list of strings" />
+                  format="list of strings"
+                  values="wpa, rsn" />
         <property name="pairwise"
                   nmcli-description="A list of pairwise encryption algorithms which prevents connections to Wi-Fi networks that do not utilize one of the algorithms in the list. For maximum compatibility leave this property empty.  Each list element may be one of &quot;tkip&quot; or &quot;ccmp&quot;."
-                  format="list of strings" />
+                  format="list of strings"
+                  values="tkip, ccmp" />
         <property name="group"
                   nmcli-description="A list of group/broadcast encryption algorithms which prevents connections to Wi-Fi networks that do not utilize one of the algorithms in the list.  For maximum compatibility leave this property empty.  Each list element may be one of &quot;wep40&quot;, &quot;wep104&quot;, &quot;tkip&quot;, or &quot;ccmp&quot;."
-                  format="list of strings" />
+                  format="list of strings"
+                  values="wep40, wep104, tkip, ccmp" />
         <property name="pmf"
                   nmcli-description="Indicates whether Protected Management Frames (802.11w) must be enabled for the connection.  One of NM_SETTING_WIRELESS_SECURITY_PMF_DEFAULT (0) (use global default value), NM_SETTING_WIRELESS_SECURITY_PMF_DISABLE (1) (disable PMF), NM_SETTING_WIRELESS_SECURITY_PMF_OPTIONAL (2) (enable PMF if the supplicant and the access point support it) or NM_SETTING_WIRELESS_SECURITY_PMF_REQUIRED (3) (enable PMF and fail if not supported).  When set to NM_SETTING_WIRELESS_SECURITY_PMF_DEFAULT (0) and no global default is set, PMF will be optionally enabled."
-                  format="choice (NMSettingWirelessSecurityPmf)" />
+                  format="choice (NMSettingWirelessSecurityPmf)"
+                  values="default (0), disable (1), optional (2), required (3)" />
         <property name="leap-username"
                   nmcli-description="The login username for legacy LEAP connections (ie, key-mgmt = &quot;ieee8021x&quot; and auth-alg = &quot;leap&quot;)."
                   format="string" />
@@ -116,36 +132,44 @@
                   format="string" />
         <property name="wep-key-flags"
                   nmcli-description="Flags indicating how to handle the &quot;wep-key0&quot;, &quot;wep-key1&quot;, &quot;wep-key2&quot;, and &quot;wep-key3&quot; properties."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="wep-key-type"
                   nmcli-description="Controls the interpretation of WEP keys.  Allowed values are NM_WEP_KEY_TYPE_KEY (1), in which case the key is either a 10- or 26-character hexadecimal string, or a 5- or 13-character ASCII password; or NM_WEP_KEY_TYPE_PASSPHRASE (2), in which case the passphrase is provided as a string and will be hashed using the de-facto MD5 method to derive the actual WEP key."
-                  format="choice (NMWepKeyType)" />
+                  format="choice (NMWepKeyType)"
+                  values="unknown (0), key (1), passphrase (2)" />
         <property name="psk"
                   nmcli-description="Pre-Shared-Key for WPA networks. For WPA-PSK, it&apos;s either an ASCII passphrase of 8 to 63 characters that is (as specified in the 802.11i standard) hashed to derive the actual key, or the key in form of 64 hexadecimal character. The WPA3-Personal networks use a passphrase of any length for SAE authentication."
                   format="string" />
         <property name="psk-flags"
                   nmcli-description="Flags indicating how to handle the &quot;psk&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="leap-password"
                   nmcli-description="The login password for legacy LEAP connections (ie, key-mgmt = &quot;ieee8021x&quot; and auth-alg = &quot;leap&quot;)."
                   format="string" />
         <property name="leap-password-flags"
                   nmcli-description="Flags indicating how to handle the &quot;leap-password&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="wps-method"
                   nmcli-description="Flags indicating which mode of WPS is to be used if any. There&apos;s little point in changing the default setting as NetworkManager will automatically determine whether it&apos;s feasible to start WPS enrollment from the Access Point capabilities. WPS can be disabled by setting this property to a value of 1."
-                  format="flags (NMSettingWirelessSecurityWpsMethod)" />
+                  format="flags (NMSettingWirelessSecurityWpsMethod)"
+                  values="default (0x0), disabled (0x1), auto (0x2), pbc (0x4), pin (0x8)" />
         <property name="fils"
                   nmcli-description="Indicates whether Fast Initial Link Setup (802.11ai) must be enabled for the connection.  One of NM_SETTING_WIRELESS_SECURITY_FILS_DEFAULT (0) (use global default value), NM_SETTING_WIRELESS_SECURITY_FILS_DISABLE (1) (disable FILS), NM_SETTING_WIRELESS_SECURITY_FILS_OPTIONAL (2) (enable FILS if the supplicant and the access point support it) or NM_SETTING_WIRELESS_SECURITY_FILS_REQUIRED (3) (enable FILS and fail if not supported).  When set to NM_SETTING_WIRELESS_SECURITY_FILS_DEFAULT (0) and no global default is set, FILS will be optionally enabled."
-                  format="choice (NMSettingWirelessSecurityFils)" />
+                  format="choice (NMSettingWirelessSecurityFils)"
+                  values="default (0), disable (1), optional (2), required (3)" />
     </setting>
     <setting name="802-1x" >
         <property name="optional"
                   nmcli-description="Whether the 802.1X authentication is optional. If TRUE, the activation will continue even after a timeout or an authentication failure. Setting the property to TRUE is currently allowed only for Ethernet connections. If set to FALSE, the activation can continue only after a successful authentication."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="eap"
                   nmcli-description="The allowed EAP method to be used when authenticating to the network with 802.1x.  Valid methods are: &quot;leap&quot;, &quot;md5&quot;, &quot;tls&quot;, &quot;peap&quot;, &quot;ttls&quot;, &quot;pwd&quot;, and &quot;fast&quot;.  Each method requires different configuration using the properties of this setting; refer to wpa_supplicant documentation for the allowed combinations."
-                  format="list of strings" />
+                  format="list of strings"
+                  values="leap, md5, tls, peap, ttls, sim, fast, pwd" />
         <property name="identity"
                   nmcli-description="Identity string for EAP authentication methods.  Often the user&apos;s user or login name."
                   format="string" />
@@ -163,7 +187,8 @@
                   format="string" />
         <property name="ca-cert-password-flags"
                   nmcli-description="Flags indicating how to handle the &quot;ca-cert-password&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="ca-path"
                   nmcli-description="UTF-8 encoded path to a directory containing PEM or DER formatted certificates to be added to the verification chain in addition to the certificate specified in the &quot;ca-cert&quot; property. If NMSetting8021x:system-ca-certs is enabled and the built-in CA path is an existing directory, then this setting is ignored."
                   format="string" />
@@ -187,25 +212,32 @@
                   format="string" />
         <property name="client-cert-password-flags"
                   nmcli-description="Flags indicating how to handle the &quot;client-cert-password&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="phase1-peapver"
                   nmcli-description="Forces which PEAP version is used when PEAP is set as the EAP method in the &quot;eap&quot; property.  When unset, the version reported by the server will be used.  Sometimes when using older RADIUS servers, it is necessary to force the client to use a particular PEAP version.  To do so, this property may be set to &quot;0&quot; or &quot;1&quot; to force that specific PEAP version."
-                  format="string" />
+                  format="string"
+                  values="0, 1" />
         <property name="phase1-peaplabel"
                   nmcli-description="Forces use of the new PEAP label during key derivation.  Some RADIUS servers may require forcing the new PEAP label to interoperate with PEAPv1.  Set to &quot;1&quot; to force use of the new PEAP label.  See the wpa_supplicant documentation for more details."
-                  format="string" />
+                  format="string"
+                  values="0, 1" />
         <property name="phase1-fast-provisioning"
                   nmcli-description="Enables or disables in-line provisioning of EAP-FAST credentials when FAST is specified as the EAP method in the &quot;eap&quot; property. Recognized values are &quot;0&quot; (disabled), &quot;1&quot; (allow unauthenticated provisioning), &quot;2&quot; (allow authenticated provisioning), and &quot;3&quot; (allow both authenticated and unauthenticated provisioning).  See the wpa_supplicant documentation for more details."
-                  format="string" />
+                  format="string"
+                  values="0, 1, 2, 3" />
         <property name="phase1-auth-flags"
                   nmcli-description="Specifies authentication flags to use in &quot;phase 1&quot; outer authentication using NMSetting8021xAuthFlags options. The individual TLS versions can be explicitly disabled. TLS time checks can be also disabled. If a certain TLS disable flag is not set, it is up to the supplicant to allow or forbid it. The TLS options map to tls_disable_tlsv1_x and tls_disable_time_checks settings. See the wpa_supplicant documentation for more details."
-                  format="flags (NMSetting8021xAuthFlags)" />
+                  format="flags (NMSetting8021xAuthFlags)"
+                  values="none (0x0), tls-1-0-disable (0x1), tls-1-1-disable (0x2), tls-1-2-disable (0x4), tls-disable-time-checks (0x8), tls-1-3-disable (0x10), tls-1-0-enable (0x20), tls-1-1-enable (0x40), tls-1-2-enable (0x80), tls-1-3-enable (0x100), all (0x1ff)" />
         <property name="phase2-auth"
                   nmcli-description="Specifies the allowed &quot;phase 2&quot; inner authentication method when an EAP method that uses an inner TLS tunnel is specified in the &quot;eap&quot; property.  For TTLS this property selects one of the supported non-EAP inner methods: &quot;pap&quot;, &quot;chap&quot;, &quot;mschap&quot;, &quot;mschapv2&quot; while &quot;phase2-autheap&quot; selects an EAP inner method.  For PEAP this selects an inner EAP method, one of: &quot;gtc&quot;, &quot;otp&quot;, &quot;md5&quot; and &quot;tls&quot;. Each &quot;phase 2&quot; inner method requires specific parameters for successful authentication; see the wpa_supplicant documentation for more details. Both &quot;phase2-auth&quot; and &quot;phase2-autheap&quot; cannot be specified."
-                  format="string" />
+                  format="string"
+                  values="pap, chap, mschap, mschapv2, gtc, otp, md5, tls" />
         <property name="phase2-autheap"
                   nmcli-description="Specifies the allowed &quot;phase 2&quot; inner EAP-based authentication method when TTLS is specified in the &quot;eap&quot; property.  Recognized EAP-based &quot;phase 2&quot; methods are &quot;md5&quot;, &quot;mschapv2&quot;, &quot;otp&quot;, &quot;gtc&quot;, and &quot;tls&quot;. Each &quot;phase 2&quot; inner method requires specific parameters for successful authentication; see the wpa_supplicant documentation for more details."
-                  format="string" />
+                  format="string"
+                  values="md5, mschapv2, otp, gtc, tls" />
         <property name="phase2-ca-cert"
                   nmcli-description="Contains the &quot;phase 2&quot; CA certificate if used by the EAP method specified in the &quot;phase2-auth&quot; or &quot;phase2-autheap&quot; properties. Certificate data is specified using a &quot;scheme&quot;; three are currently supported: blob, path and pkcs#11 URL. When using the blob scheme this property should be set to the certificate&apos;s DER encoded data. When using the path scheme, this property should be set to the full UTF-8 encoded path of the certificate, prefixed with the string &quot;file://&quot; and ending with a terminating NUL byte. This property can be unset even if the EAP method supports CA certificates, but this allows man-in-the-middle attacks and is NOT recommended. Note that enabling NMSetting8021x:system-ca-certs will override this setting to use the built-in path, if the built-in path is not a directory."
                   format="filesystem path" />
@@ -214,7 +246,8 @@
                   format="string" />
         <property name="phase2-ca-cert-password-flags"
                   nmcli-description="Flags indicating how to handle the &quot;phase2-ca-cert-password&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="phase2-ca-path"
                   nmcli-description="UTF-8 encoded path to a directory containing PEM or DER formatted certificates to be added to the verification chain in addition to the certificate specified in the &quot;phase2-ca-cert&quot; property. If NMSetting8021x:system-ca-certs is enabled and the built-in CA path is an existing directory, then this setting is ignored."
                   format="filesystem path" />
@@ -238,19 +271,22 @@
                   format="string" />
         <property name="phase2-client-cert-password-flags"
                   nmcli-description="Flags indicating how to handle the &quot;phase2-client-cert-password&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="password"
                   nmcli-description="UTF-8 encoded password used for EAP authentication methods. If both the &quot;password&quot; property and the &quot;password-raw&quot; property are specified, &quot;password&quot; is preferred."
                   format="string" />
         <property name="password-flags"
                   nmcli-description="Flags indicating how to handle the &quot;password&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="password-raw"
                   nmcli-description="Password used for EAP authentication methods, given as a byte array to allow passwords in other encodings than UTF-8 to be used. If both the &quot;password&quot; property and the &quot;password-raw&quot; property are specified, &quot;password&quot; is preferred."
                   format="bytes" />
         <property name="password-raw-flags"
                   nmcli-description="Flags indicating how to handle the &quot;password-raw&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="private-key"
                   nmcli-description="Contains the private key when the &quot;eap&quot; property is set to &quot;tls&quot;. Key data is specified using a &quot;scheme&quot;; two are currently supported: blob and path. When using the blob scheme and private keys, this property should be set to the key&apos;s encrypted PEM encoded data. When using private keys with the path scheme, this property should be set to the full UTF-8 encoded path of the key, prefixed with the string &quot;file://&quot; and ending with a terminating NUL byte. When using PKCS#12 format private keys and the blob scheme, this property should be set to the PKCS#12 data and the &quot;private-key-password&quot; property must be set to password used to decrypt the PKCS#12 certificate and key. When using PKCS#12 files and the path scheme, this property should be set to the full UTF-8 encoded path of the key, prefixed with the string &quot;file://&quot; and ending with a terminating NUL byte, and as with the blob scheme the &quot;private-key-password&quot; property must be set to the password used to decode the PKCS#12 private key and certificate. WARNING: &quot;private-key&quot; is not a &quot;secret&quot; property, and thus unencrypted private key data using the BLOB scheme may be readable by unprivileged users.  Private keys should always be encrypted with a private key password to prevent unauthorized access to unencrypted private key data."
                   format="filesystem path" />
@@ -259,7 +295,8 @@
                   format="string" />
         <property name="private-key-password-flags"
                   nmcli-description="Flags indicating how to handle the &quot;private-key-password&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="phase2-private-key"
                   nmcli-description="Contains the &quot;phase 2&quot; inner private key when the &quot;phase2-auth&quot; or &quot;phase2-autheap&quot; property is set to &quot;tls&quot;. Key data is specified using a &quot;scheme&quot;; two are currently supported: blob and path. When using the blob scheme and private keys, this property should be set to the key&apos;s encrypted PEM encoded data. When using private keys with the path scheme, this property should be set to the full UTF-8 encoded path of the key, prefixed with the string &quot;file://&quot; and ending with a terminating NUL byte. When using PKCS#12 format private keys and the blob scheme, this property should be set to the PKCS#12 data and the &quot;phase2-private-key-password&quot; property must be set to password used to decrypt the PKCS#12 certificate and key. When using PKCS#12 files and the path scheme, this property should be set to the full UTF-8 encoded path of the key, prefixed with the string &quot;file://&quot; and ending with a terminating NUL byte, and as with the blob scheme the &quot;phase2-private-key-password&quot; property must be set to the password used to decode the PKCS#12 private key and certificate."
                   format="filesystem path" />
@@ -268,19 +305,23 @@
                   format="string" />
         <property name="phase2-private-key-password-flags"
                   nmcli-description="Flags indicating how to handle the &quot;phase2-private-key-password&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="pin"
                   nmcli-description="PIN used for EAP authentication methods."
                   format="string" />
         <property name="pin-flags"
                   nmcli-description="Flags indicating how to handle the &quot;pin&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="system-ca-certs"
                   nmcli-description="When TRUE, overrides the &quot;ca-path&quot; and &quot;phase2-ca-path&quot; properties using the system CA directory specified at configure time with the --system-ca-path switch.  The certificates in this directory are added to the verification chain in addition to any certificates specified by the &quot;ca-cert&quot; and &quot;phase2-ca-cert&quot; properties. If the path provided with --system-ca-path is rather a file name (bundle of trusted CA certificates), it overrides &quot;ca-cert&quot; and &quot;phase2-ca-cert&quot; properties instead (sets ca_cert/ca_cert2 options for wpa_supplicant)."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="auth-timeout"
                   nmcli-description="A timeout for the authentication. Zero means the global default; if the global default is not set, the authentication timeout is 25 seconds."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 2147483647" />
     </setting>
     <setting name="802-3-ethernet"
              alias="ethernet" >
@@ -289,13 +330,16 @@
                   format="read only" />
         <property name="speed"
                   nmcli-description="When a value greater than 0 is set, configures the device to use the specified speed. If &quot;auto-negotiate&quot; is &quot;yes&quot; the specified speed will be the only one advertised during link negotiation: this works only for BASE-T 802.3 specifications and is useful for enforcing gigabit speeds, as in this case link negotiation is mandatory. If the value is unset (0, the default), the link configuration will be either skipped (if &quot;auto-negotiate&quot; is &quot;no&quot;, the default) or will be auto-negotiated (if &quot;auto-negotiate&quot; is &quot;yes&quot;) and the local device will advertise all the supported speeds. In Mbit/s, ie 100 == 100Mbit/s. Must be set together with the &quot;duplex&quot; property when non-zero. Before specifying a speed value be sure your device supports it."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="duplex"
                   nmcli-description="When a value is set, either &quot;half&quot; or &quot;full&quot;, configures the device to use the specified duplex mode. If &quot;auto-negotiate&quot; is &quot;yes&quot; the specified duplex mode will be the only one advertised during link negotiation: this works only for BASE-T 802.3 specifications and is useful for enforcing gigabits modes, as in these cases link negotiation is mandatory. If the value is unset (the default), the link configuration will be either skipped (if &quot;auto-negotiate&quot; is &quot;no&quot;, the default) or will be auto-negotiated (if &quot;auto-negotiate&quot; is &quot;yes&quot;) and the local device will advertise all the supported duplex modes. Must be set together with the &quot;speed&quot; property if specified. Before specifying a duplex mode be sure your device supports it."
-                  format="string" />
+                  format="string"
+                  values="half, full" />
         <property name="auto-negotiate"
                   nmcli-description="When TRUE, enforce auto-negotiation of speed and duplex mode. If &quot;speed&quot; and &quot;duplex&quot; properties are both specified, only that single mode will be advertised and accepted during the link auto-negotiation process: this works only for BASE-T 802.3 specifications and is useful for enforcing gigabits modes, as in these cases link negotiation is mandatory. When FALSE, &quot;speed&quot; and &quot;duplex&quot; properties should be both set or link configuration will be skipped."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="mac-address"
                   alias="mac"
                   nmcli-description="If specified, this connection will only apply to the Ethernet device whose permanent MAC address matches. This property does not change the MAC address of the device (i.e. MAC spoofing)."
@@ -319,19 +363,22 @@
                   format="list of 802-3-ethernet.s390-subchannels objects" />
         <property name="s390-nettype"
                   nmcli-description="s390 network device type; one of &quot;qeth&quot;, &quot;lcs&quot;, or &quot;ctc&quot;, representing the different types of virtual network devices available on s390 systems."
-                  format="string" />
+                  format="string"
+                  values="qeth, lcs, ctc" />
         <property name="s390-options"
                   nmcli-description="Dictionary of key/value pairs of s390-specific device options.  Both keys and values must be strings.  Allowed keys include &quot;portno&quot;, &quot;layer2&quot;, &quot;portname&quot;, &quot;protocol&quot;, among others.  Key names must contain only alphanumeric characters (ie, [a-zA-Z0-9]). Currently, NetworkManager itself does nothing with this information. However, s390utils ships a udev rule which parses this information and applies it to the interface."
                   format="list of key/value options" />
         <property name="wake-on-lan"
                   nmcli-description="The NMSettingWiredWakeOnLan options to enable. Not all devices support all options. May be any combination of NM_SETTING_WIRED_WAKE_ON_LAN_PHY (0x2), NM_SETTING_WIRED_WAKE_ON_LAN_UNICAST (0x4), NM_SETTING_WIRED_WAKE_ON_LAN_MULTICAST (0x8), NM_SETTING_WIRED_WAKE_ON_LAN_BROADCAST (0x10), NM_SETTING_WIRED_WAKE_ON_LAN_ARP (0x20), NM_SETTING_WIRED_WAKE_ON_LAN_MAGIC (0x40) or the special values NM_SETTING_WIRED_WAKE_ON_LAN_DEFAULT (0x1) (to use global settings) and NM_SETTING_WIRED_WAKE_ON_LAN_IGNORE (0x8000) (to disable management of Wake-on-LAN in NetworkManager)."
-                  format="flags (NMSettingWiredWakeOnLan)" />
+                  format="flags (NMSettingWiredWakeOnLan)"
+                  values="phy (0x2), unicast (0x4), multicast (0x8), broadcast (0x10), arp (0x20), magic (0x40), default (0x1), ignore (0x8000)" />
         <property name="wake-on-lan-password"
                   nmcli-description="If specified, the password used with magic-packet-based Wake-on-LAN, represented as an Ethernet MAC address.  If NULL, no password will be required."
                   format="MAC address" />
         <property name="accept-all-mac-addresses"
                   nmcli-description="When TRUE, setup the interface to accept packets for all MAC addresses. This is enabling the kernel interface flag IFF_PROMISC. When FALSE, the interface will only accept the packets with the interface destination mac address or broadcast."
-                  format="ternary" />
+                  format="ternary"
+                  values="true/yes/on, false/no/off, default/unknown" />
     </setting>
     <setting name="adsl" >
         <property name="username"
@@ -344,21 +391,26 @@
                   format="string" />
         <property name="password-flags"
                   nmcli-description="Flags indicating how to handle the &quot;password&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="protocol"
                   alias="protocol"
                   nmcli-description="ADSL connection protocol.  Can be &quot;pppoa&quot;, &quot;pppoe&quot; or &quot;ipoatm&quot;."
-                  format="string" />
+                  format="string"
+                  values="pppoa, pppoe, ipoatm" />
         <property name="encapsulation"
                   alias="encapsulation"
                   nmcli-description="Encapsulation of ADSL connection.  Can be &quot;vcmux&quot; or &quot;llc&quot;."
-                  format="string" />
+                  format="string"
+                  values="vcmux, llc" />
         <property name="vpi"
                   nmcli-description="VPI of ADSL connection"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 65536" />
         <property name="vci"
                   nmcli-description="VCI of ADSL connection"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 65536" />
     </setting>
     <setting name="bluetooth" >
         <property name="bdaddr"
@@ -368,7 +420,8 @@
         <property name="type"
                   alias="bt-type"
                   nmcli-description="Either &quot;dun&quot; for Dial-Up Networking connections or &quot;panu&quot; for Personal Area Networking connections to devices supporting the NAP profile."
-                  format="string" />
+                  format="string"
+                  values="dun, panu, nap" />
     </setting>
     <setting name="bond" >
         <property name="options"
@@ -379,11 +432,13 @@
         <property name="queue-id"
                   alias="queue-id"
                   nmcli-description="The queue ID of this bond port. The maximum value of queue ID is the number of TX queues currently active in device."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 65535" />
         <property name="prio"
                   alias="prio"
                   nmcli-description="The port priority for bond active port re-selection during failover. A higher number means a higher priority in selection. The primary port has the highest priority. This option is only compatible with active-backup, balance-tlb and balance-alb modes."
-                  format="integer" />
+                  format="integer"
+                  values="-2147483648 - 2147483647" />
     </setting>
     <setting name="bridge" >
         <property name="mac-address"
@@ -393,86 +448,110 @@
         <property name="stp"
                   alias="stp"
                   nmcli-description="Controls whether Spanning Tree Protocol (STP) is enabled for this bridge."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="priority"
                   alias="priority"
                   nmcli-description="Sets the Spanning Tree Protocol (STP) priority for this bridge.  Lower values are &quot;better&quot;; the lowest priority bridge will be elected the root bridge."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 65535" />
         <property name="forward-delay"
                   alias="forward-delay"
                   nmcli-description="The Spanning Tree Protocol (STP) forwarding delay, in seconds."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 30" />
         <property name="hello-time"
                   alias="hello-time"
                   nmcli-description="The Spanning Tree Protocol (STP) hello time, in seconds."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 10" />
         <property name="max-age"
                   alias="max-age"
                   nmcli-description="The Spanning Tree Protocol (STP) maximum message age, in seconds."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 40" />
         <property name="ageing-time"
                   alias="ageing-time"
                   nmcli-description="The Ethernet MAC address aging time, in seconds."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 1000000" />
         <property name="group-address"
                   nmcli-description="If specified, The MAC address of the multicast group this bridge uses for STP. The address must be a link-local address in standard Ethernet MAC address format, ie an address of the form 01:80:C2:00:00:0X, with X in [0, 4..F]. If not specified the default value is 01:80:C2:00:00:00."
                   format="MAC address" />
         <property name="group-forward-mask"
                   alias="group-forward-mask"
                   nmcli-description="A mask of group addresses to forward. Usually, group addresses in the range from 01:80:C2:00:00:00 to 01:80:C2:00:00:0F are not forwarded according to standards. This property is a mask of 16 bits, each corresponding to a group address in that range that must be forwarded. The mask can&apos;t have bits 0, 1 or 2 set because they are used for STP, MAC pause frames and LACP."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 65535" />
         <property name="multicast-hash-max"
                   nmcli-description="Set maximum size of multicast hash table (value must be a power of 2)."
-                  format="integer" />
+                  format="integer"
+                  values="1 - 4294967295" />
         <property name="multicast-last-member-count"
                   nmcli-description="Set the number of queries the bridge will send before stopping forwarding a multicast group after a &quot;leave&quot; message has been received."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="multicast-last-member-interval"
                   nmcli-description="Set interval (in deciseconds) between queries to find remaining members of a group, after a &quot;leave&quot; message is received."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 18446744073709551615" />
         <property name="multicast-membership-interval"
                   nmcli-description="Set delay (in deciseconds) after which the bridge will leave a group, if no membership reports for this group are received."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 18446744073709551615" />
         <property name="multicast-querier"
                   nmcli-description="Enable or disable sending of multicast queries by the bridge. If not specified the option is disabled."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="multicast-querier-interval"
                   nmcli-description="If no queries are seen after this delay (in deciseconds) has passed, the bridge will start to send its own queries."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 18446744073709551615" />
         <property name="multicast-query-interval"
                   nmcli-description="Interval (in deciseconds) between queries sent by the bridge after the end of the startup phase."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 18446744073709551615" />
         <property name="multicast-query-response-interval"
                   nmcli-description="Set the Max Response Time/Max Response Delay (in deciseconds) for IGMP/MLD queries sent by the bridge."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 18446744073709551615" />
         <property name="multicast-query-use-ifaddr"
                   nmcli-description="If enabled the bridge&apos;s own IP address is used as the source address for IGMP queries otherwise the default of 0.0.0.0 is used."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="multicast-snooping"
                   alias="multicast-snooping"
                   nmcli-description="Controls whether IGMP snooping is enabled for this bridge. Note that if snooping was automatically disabled due to hash collisions, the system may refuse to enable the feature until the collisions are resolved."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="multicast-startup-query-count"
                   nmcli-description="Set the number of IGMP queries to send during startup phase."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="multicast-startup-query-interval"
                   nmcli-description="Sets the time (in deciseconds) between queries sent out at startup to determine membership information."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 18446744073709551615" />
         <property name="multicast-router"
                   nmcli-description="Sets bridge&apos;s multicast router. Multicast-snooping must be enabled for this option to work. Supported values are: &apos;auto&apos;, &apos;disabled&apos;, &apos;enabled&apos; to which kernel assigns the numbers 1, 0, and 2, respectively. If not specified the default value is &apos;auto&apos; (1)."
-                  format="string" />
+                  format="string"
+                  values="auto, disabled, enabled" />
         <property name="vlan-filtering"
                   nmcli-description="Control whether VLAN filtering is enabled on the bridge."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="vlan-default-pvid"
                   nmcli-description="The default PVID for the ports of the bridge, that is the VLAN id assigned to incoming untagged frames."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4094" />
         <property name="vlan-stats-enabled"
                   nmcli-description="Controls whether per-VLAN stats accounting is enabled."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="vlan-protocol"
                   nmcli-description="If specified, the protocol used for VLAN filtering. Supported values are: &apos;802.1Q&apos;, &apos;802.1ad&apos;. If not specified the default value is &apos;802.1Q&apos;."
-                  format="string" />
+                  format="string"
+                  values="802.1Q, 802.1ad" />
         <property name="vlans"
                   nmcli-description="Array of bridge VLAN objects. In addition to the VLANs specified here, the bridge will also have the default-pvid VLAN configured  by the bridge.vlan-default-pvid property. In nmcli the VLAN list can be specified with the following syntax: $vid [pvid] [untagged] [, $vid [pvid] [untagged]]... where $vid is either a single id between 1 and 4094 or a range, represented as a couple of ids separated by a dash."
                   format="list of bridge.vlans objects" />
@@ -481,15 +560,18 @@
         <property name="priority"
                   alias="priority"
                   nmcli-description="The Spanning Tree Protocol (STP) priority of this bridge port."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 63" />
         <property name="path-cost"
                   alias="path-cost"
                   nmcli-description="The Spanning Tree Protocol (STP) port cost for destinations via this port."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 65535" />
         <property name="hairpin-mode"
                   alias="hairpin"
                   nmcli-description="Enables or disables &quot;hairpin mode&quot; for the port, which allows frames to be sent back out through the port the frame was received on."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="vlans"
                   nmcli-description="Array of bridge VLAN objects. In addition to the VLANs specified here, the port will also have the default-pvid VLAN configured on the bridge by the bridge.vlan-default-pvid property. In nmcli the VLAN list can be specified with the following syntax: $vid [pvid] [untagged] [, $vid [pvid] [untagged]]... where $vid is either a single id between 1 and 4094 or a range, represented as a couple of ids separated by a dash."
                   format="list of bridge-port.vlans objects" />
@@ -508,7 +590,8 @@
                   format="string" />
         <property name="password-flags"
                   nmcli-description="Flags indicating how to handle the &quot;password&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="mtu"
                   nmcli-description="If non-zero, only transmit packets of the specified size or smaller, breaking larger packets up into multiple frames."
                   format="integer" />
@@ -527,7 +610,8 @@
         <property name="type"
                   alias="type"
                   nmcli-description="Base type of the connection. For hardware-dependent connections, should contain the setting name of the hardware-type specific setting (ie, &quot;802-3-ethernet&quot; or &quot;802-11-wireless&quot; or &quot;bluetooth&quot;, etc), and for non-hardware dependent connections like VPN or otherwise, should contain the setting name of that setting type (ie, &quot;vpn&quot; or &quot;bridge&quot;, etc)."
-                  format="string" />
+                  format="string"
+                  values="6lowpan, 802-11-olpc-mesh, 802-11-wireless, 802-3-ethernet, adsl, bluetooth, bond, bridge, cdma, dummy, generic, gsm, infiniband, ip-tunnel, loopback, macsec, macvlan, ovs-bridge, ovs-dpdk, ovs-interface, ovs-patch, ovs-port, pppoe, team, tun, veth, vlan, vpn, vrf, vxlan, wifi-p2p, wimax, wireguard, wpan" />
         <property name="interface-name"
                   alias="ifname"
                   nmcli-description="The name of the network interface this connection is bound to. If not set, then the connection can be attached to any interface of the appropriate type (subject to restrictions imposed by other settings). For software devices this specifies the name of the created device. For connection types where interface names cannot easily be made persistent (e.g. mobile broadband or USB Ethernet), this property should not be used. Setting this property restricts the interfaces a connection can be used with, and if interface names change or are reordered the connection may be applied to the wrong interface."
@@ -535,19 +619,24 @@
         <property name="autoconnect"
                   alias="autoconnect"
                   nmcli-description="Whether or not the connection should be automatically connected by NetworkManager when the resources for the connection are available. TRUE to automatically activate the connection, FALSE to require manual intervention to activate the connection. Autoconnect happens when the circumstances are suitable. That means for example that the device is currently managed and not active. Autoconnect thus never replaces or competes with an already active profile. Note that autoconnect is not implemented for VPN profiles. See &quot;secondaries&quot; as an alternative to automatically connect VPN profiles. If multiple profiles are ready to autoconnect on the same device, the one with the better &quot;connection.autoconnect-priority&quot; is chosen. If the priorities are equal, then the most recently connected profile is activated. If the profiles were not connected earlier or their &quot;connection.timestamp&quot; is identical, the choice is undefined. Depending on &quot;connection.multi-connect&quot;, a profile can (auto)connect only once at a time or multiple times."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="autoconnect-priority"
                   nmcli-description="The autoconnect priority in range -999 to 999. If the connection is set to autoconnect, connections with higher priority will be preferred. The higher number means higher priority. Defaults to 0. Note that this property only matters if there are more than one candidate profile to select for autoconnect. In case of equal priority, the profile used most recently is chosen."
-                  format="integer" />
+                  format="integer"
+                  values="-999 - 999" />
         <property name="autoconnect-retries"
                   nmcli-description="The number of times a connection should be tried when autoactivating before giving up. Zero means forever, -1 means the global default (4 times if not overridden). Setting this to 1 means to try activation only once before blocking autoconnect. Note that after a timeout, NetworkManager will try to autoconnect again."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 2147483647" />
         <property name="multi-connect"
                   nmcli-description="Specifies whether the profile can be active multiple times at a particular moment. The value is of type NMConnectionMultiConnect."
-                  format="choice (NMConnectionMultiConnect)" />
+                  format="choice (NMConnectionMultiConnect)"
+                  values="default (0), single (1), manual-multiple (2), multiple (3)" />
         <property name="auth-retries"
                   nmcli-description="The number of retries for the authentication. Zero means to try indefinitely; -1 means to use a global default. If the global default is not set, the authentication retries for 3 times before failing the connection. Currently, this only applies to 802-1x authentication."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 2147483647" />
         <property name="timestamp"
                   nmcli-description="The time, in seconds since the Unix Epoch, that the connection was last _successfully_ fully activated. NetworkManager updates the connection timestamp periodically when the connection is active to ensure that an active connection has the latest timestamp. The property is only meant for reading (changes to this property will not be preserved)."
                   format="read only" />
@@ -564,278 +653,392 @@
         <property name="slave-type"
                   alias="slave-type"
                   nmcli-description="Setting name of the device type of this slave&apos;s master connection (eg, &quot;bond&quot;), or NULL if this connection is not a slave."
-                  format="string" />
+                  format="string"
+                  values="bond, bridge, ovs-bridge, ovs-port, team, vrf" />
         <property name="autoconnect-slaves"
                   nmcli-description="Whether or not slaves of this connection should be automatically brought up when NetworkManager activates this connection. This only has a real effect for master connections. The properties &quot;autoconnect&quot;, &quot;autoconnect-priority&quot; and &quot;autoconnect-retries&quot; are unrelated to this setting. The permitted values are: 0: leave slave connections untouched, 1: activate all the slave connections with this connection, -1: default. If -1 (default) is set, global connection.autoconnect-slaves is read to determine the real value. If it is default as well, this fallbacks to 0."
-                  format="choice (NMSettingConnectionAutoconnectSlaves)" />
+                  format="choice (NMSettingConnectionAutoconnectSlaves)"
+                  values="default (-1), no (0), yes (1)" />
         <property name="secondaries"
                   nmcli-description="List of connection UUIDs that should be activated when the base connection itself is activated. Currently, only VPN connections are supported."
                   format="list of strings" />
         <property name="gateway-ping-timeout"
                   nmcli-description="If greater than zero, delay success of IP addressing until either the timeout is reached, or an IP gateway replies to a ping."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 600" />
         <property name="metered"
                   nmcli-description="Whether the connection is metered. When updating this property on a currently activated connection, the change takes effect immediately."
-                  format="ternary" />
+                  format="ternary"
+                  values="true/yes/on, false/no/off, default/unknown, yes, no, unknown" />
         <property name="lldp"
                   nmcli-description="Whether LLDP is enabled for the connection."
-                  format="choice (NMSettingConnectionLldp)" />
+                  format="choice (NMSettingConnectionLldp)"
+                  values="default (-1), disable (0), enable-rx/enable (1)" />
         <property name="mdns"
                   nmcli-description="Whether mDNS is enabled for the connection. The permitted values are: &quot;yes&quot; (2) register hostname and resolving for the connection, &quot;no&quot; (0) disable mDNS for the interface, &quot;resolve&quot; (1) do not register hostname but allow resolving of mDNS host names and &quot;default&quot; (-1) to allow lookup of a global default in NetworkManager.conf. If unspecified, &quot;default&quot; ultimately depends on the DNS plugin (which for systemd-resolved currently means &quot;no&quot;). This feature requires a plugin which supports mDNS. Otherwise, the setting has no effect. One such plugin is dns-systemd-resolved."
-                  format="choice (NMSettingConnectionMdns)" />
+                  format="choice (NMSettingConnectionMdns)"
+                  values="default (-1), no (0), resolve (1), yes (2)" />
         <property name="llmnr"
                   nmcli-description="Whether Link-Local Multicast Name Resolution (LLMNR) is enabled for the connection. LLMNR is a protocol based on the Domain Name System (DNS) packet format that allows both IPv4 and IPv6 hosts to perform name resolution for hosts on the same local link. The permitted values are: &quot;yes&quot; (2) register hostname and resolving for the connection, &quot;no&quot; (0) disable LLMNR for the interface, &quot;resolve&quot; (1) do not register hostname but allow resolving of LLMNR host names If unspecified, &quot;default&quot; ultimately depends on the DNS plugin (which for systemd-resolved currently means &quot;yes&quot;). This feature requires a plugin which supports LLMNR. Otherwise, the setting has no effect. One such plugin is dns-systemd-resolved."
-                  format="choice (NMSettingConnectionLlmnr)" />
+                  format="choice (NMSettingConnectionLlmnr)"
+                  values="default (-1), no (0), resolve (1), yes (2)" />
         <property name="dns-over-tls"
                   nmcli-description="Whether DNSOverTls (dns-over-tls) is enabled for the connection. DNSOverTls is a technology which uses TLS to encrypt dns traffic. The permitted values are: &quot;yes&quot; (2) use DNSOverTls and disabled fallback, &quot;opportunistic&quot; (1) use DNSOverTls but allow fallback to unencrypted resolution, &quot;no&quot; (0) don&apos;t ever use DNSOverTls. If unspecified &quot;default&quot; depends on the plugin used. Systemd-resolved uses global setting. This feature requires a plugin which supports DNSOverTls. Otherwise, the setting has no effect. One such plugin is dns-systemd-resolved."
-                  format="choice (NMSettingConnectionDnsOverTls)" />
+                  format="choice (NMSettingConnectionDnsOverTls)"
+                  values="default (-1), no (0), opportunistic (1), yes (2)" />
         <property name="mptcp-flags"
                   nmcli-description="Whether to configure MPTCP endpoints and the address flags. If MPTCP is enabled in NetworkManager, it will configure the addresses of the interface as MPTCP endpoints. Note that IPv4 loopback addresses (127.0.0.0/8), IPv4 link local addresses (169.254.0.0/16), the IPv6 loopback address (::1), IPv6 link local addresses (fe80::/10), IPv6 unique local addresses (ULA, fc00::/7) and IPv6 privacy extension addresses (rfc3041, ipv6.ip6-privacy) will be excluded from being configured as endpoints. If &quot;disabled&quot; (0x1), MPTCP handling for the interface is disabled and no endpoints are registered. The &quot;enabled&quot; (0x2) flag means that MPTCP handling is enabled. This flag can also be implied from the presence of other flags. Even when enabled, MPTCP handling will by default still be disabled unless &quot;/proc/sys/net/mptcp/enabled&quot; sysctl is on. NetworkManager does not change the sysctl and this is up to the administrator or distribution. To configure endpoints even if the sysctl is disabled, &quot;also-without-sysctl&quot; (0x4) flag can be used. In that case, NetworkManager doesn&apos;t look at the sysctl and configures endpoints regardless. Even when enabled, NetworkManager will only configure MPTCP endpoints for a certain address family, if there is a unicast default route (0.0.0.0/0 or ::/0) in the main routing table. The flag &quot;also-without-default-route&quot; (0x8) can override that. When MPTCP handling is enabled then endpoints are configured with the specified address flags &quot;signal&quot; (0x10), &quot;subflow&quot; (0x20), &quot;backup&quot; (0x40), &quot;fullmesh&quot; (0x80). See ip-mptcp(8) manual for additional information about the flags. If the flags are zero (0x0), the global connection default from NetworkManager.conf is honored. If still unspecified, the fallback is &quot;enabled,subflow&quot;. Note that this means that MPTCP is by default done depending on the &quot;/proc/sys/net/mptcp/enabled&quot; sysctl. NetworkManager does not change the MPTCP limits nor enable MPTCP via &quot;/proc/sys/net/mptcp/enabled&quot;. That is a host configuration which the admin can change via sysctl and ip-mptcp. Strict reverse path filtering (rp_filter) breaks many MPTCP use cases, so when MPTCP handling for IPv4 addresses on the interface is enabled, NetworkManager would loosen the strict reverse path filtering (1) to the loose setting (2)."
-                  format="flags (NMMptcpFlags)" />
+                  format="flags (NMMptcpFlags)"
+                  values="none/default (0x0), disabled (0x1), enabled (0x2), also-without-sysctl (0x4), also-without-default-route (0x8), signal (0x10), subflow (0x20), backup (0x40), fullmesh (0x80)" />
         <property name="mud-url"
                   nmcli-description="If configured, set to a Manufacturer Usage Description (MUD) URL that points to manufacturer-recommended network policies for IoT devices. It is transmitted as a DHCPv4 or DHCPv6 option. The value must be a valid URL starting with &quot;https://&quot;. The special value &quot;none&quot; is allowed to indicate that no MUD URL is used. If the per-profile value is unspecified (the default), a global connection default gets consulted. If still unspecified, the ultimate default is &quot;none&quot;."
                   format="string" />
         <property name="wait-device-timeout"
                   nmcli-description="Timeout in milliseconds to wait for device at startup. During boot, devices may take a while to be detected by the driver. This property will cause to delay NetworkManager-wait-online.service and nm-online to give the device a chance to appear. This works by waiting for the given timeout until a compatible device for the profile is available and managed. The value 0 means no wait time. The default value is -1, which currently has the same meaning as no wait time."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 2147483647" />
         <property name="wait-activation-delay"
                   nmcli-description="Time in milliseconds to wait for connection to be considered activated. The wait will start after the pre-up dispatcher event. The value 0 means no wait time. The default value is -1, which currently has the same meaning as no wait time."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 2147483647" />
     </setting>
     <setting name="dcb" >
         <property name="app-fcoe-flags"
                   nmcli-description="Specifies the NMSettingDcbFlags for the DCB FCoE application.  Flags may be any combination of NM_SETTING_DCB_FLAG_ENABLE (0x1), NM_SETTING_DCB_FLAG_ADVERTISE (0x2), and NM_SETTING_DCB_FLAG_WILLING (0x4)."
-                  format="flags (NMSettingDcbFlags)" />
+                  format="flags (NMSettingDcbFlags)"
+                  values="none (0x0), enable (0x1), advertise (0x2), willing (0x4)" />
         <property name="app-fcoe-priority"
                   nmcli-description="The highest User Priority (0 - 7) which FCoE frames should use, or -1 for default priority.  Only used when the &quot;app-fcoe-flags&quot; property includes the NM_SETTING_DCB_FLAG_ENABLE (0x1) flag."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 7" />
         <property name="app-fcoe-mode"
                   nmcli-description="The FCoE controller mode; either &quot;fabric&quot; or &quot;vn2vn&quot;. Since 1.34, NULL is the default and means &quot;fabric&quot;. Before 1.34, NULL was rejected as invalid and the default was &quot;fabric&quot;."
-                  format="string" />
+                  format="string"
+                  values="fabric, vn2vn" />
         <property name="app-iscsi-flags"
                   nmcli-description="Specifies the NMSettingDcbFlags for the DCB iSCSI application.  Flags may be any combination of NM_SETTING_DCB_FLAG_ENABLE (0x1), NM_SETTING_DCB_FLAG_ADVERTISE (0x2), and NM_SETTING_DCB_FLAG_WILLING (0x4)."
-                  format="flags (NMSettingDcbFlags)" />
+                  format="flags (NMSettingDcbFlags)"
+                  values="none (0x0), enable (0x1), advertise (0x2), willing (0x4)" />
         <property name="app-iscsi-priority"
                   nmcli-description="The highest User Priority (0 - 7) which iSCSI frames should use, or -1 for default priority. Only used when the &quot;app-iscsi-flags&quot; property includes the NM_SETTING_DCB_FLAG_ENABLE (0x1) flag."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 7" />
         <property name="app-fip-flags"
                   nmcli-description="Specifies the NMSettingDcbFlags for the DCB FIP application.  Flags may be any combination of NM_SETTING_DCB_FLAG_ENABLE (0x1), NM_SETTING_DCB_FLAG_ADVERTISE (0x2), and NM_SETTING_DCB_FLAG_WILLING (0x4)."
-                  format="flags (NMSettingDcbFlags)" />
+                  format="flags (NMSettingDcbFlags)"
+                  values="none (0x0), enable (0x1), advertise (0x2), willing (0x4)" />
         <property name="app-fip-priority"
                   nmcli-description="The highest User Priority (0 - 7) which FIP frames should use, or -1 for default priority.  Only used when the &quot;app-fip-flags&quot; property includes the NM_SETTING_DCB_FLAG_ENABLE (0x1) flag."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 7" />
         <property name="priority-flow-control-flags"
                   nmcli-description="Specifies the NMSettingDcbFlags for DCB Priority Flow Control (PFC). Flags may be any combination of NM_SETTING_DCB_FLAG_ENABLE (0x1), NM_SETTING_DCB_FLAG_ADVERTISE (0x2), and NM_SETTING_DCB_FLAG_WILLING (0x4)."
-                  format="flags (NMSettingDcbFlags)" />
+                  format="flags (NMSettingDcbFlags)"
+                  values="none (0x0), enable (0x1), advertise (0x2), willing (0x4)" />
         <property name="priority-flow-control"
                   nmcli-description="An array of 8 boolean values, where the array index corresponds to the User Priority (0 - 7) and the value indicates whether or not the corresponding priority should transmit priority pause."
-                  format="list of booleans" />
+                  format="list of booleans"
+                  values="true/yes/on, false/no/off" />
         <property name="priority-group-flags"
                   nmcli-description="Specifies the NMSettingDcbFlags for DCB Priority Groups.  Flags may be any combination of NM_SETTING_DCB_FLAG_ENABLE (0x1), NM_SETTING_DCB_FLAG_ADVERTISE (0x2), and NM_SETTING_DCB_FLAG_WILLING (0x4)."
-                  format="flags (NMSettingDcbFlags)" />
+                  format="flags (NMSettingDcbFlags)"
+                  values="none (0x0), enable (0x1), advertise (0x2), willing (0x4)" />
         <property name="priority-group-id"
                   nmcli-description="An array of 8 uint values, where the array index corresponds to the User Priority (0 - 7) and the value indicates the Priority Group ID.  Allowed Priority Group ID values are 0 - 7 or 15 for the unrestricted group."
-                  format="list of integers" />
+                  format="list of integers"
+                  values="0 - 7, 15" />
         <property name="priority-group-bandwidth"
                   nmcli-description="An array of 8 uint values, where the array index corresponds to the Priority Group ID (0 - 7) and the value indicates the percentage of link bandwidth allocated to that group.  Allowed values are 0 - 100, and the sum of all values must total 100 percents."
-                  format="list of integers" />
+                  format="list of integers"
+                  values="0 - 100" />
         <property name="priority-bandwidth"
                   nmcli-description="An array of 8 uint values, where the array index corresponds to the User Priority (0 - 7) and the value indicates the percentage of bandwidth of the priority&apos;s assigned group that the priority may use.  The sum of all percentages for priorities which belong to the same group must total 100 percents."
-                  format="list of integers" />
+                  format="list of integers"
+                  values="0 - 100" />
         <property name="priority-strict-bandwidth"
                   nmcli-description="An array of 8 boolean values, where the array index corresponds to the User Priority (0 - 7) and the value indicates whether or not the priority may use all of the bandwidth allocated to its assigned group."
-                  format="list of booleans" />
+                  format="list of booleans"
+                  values="true/yes/on, false/no/off" />
         <property name="priority-traffic-class"
                   nmcli-description="An array of 8 uint values, where the array index corresponds to the User Priority (0 - 7) and the value indicates the traffic class (0 - 7) to which the priority is mapped."
-                  format="list of integers" />
+                  format="list of integers"
+                  values="0 - 7" />
     </setting>
     <setting name="dummy" >
     </setting>
     <setting name="ethtool" >
         <property name="feature-esp-hw-offload"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-esp-tx-csum-hw-offload"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-fcoe-mtu"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-gro"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-gso"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-highdma"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-hw-tc-offload"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-l2-fwd-offload"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-loopback"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-lro"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-macsec-hw-offload"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-ntuple"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-rx"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-rxhash"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-rxvlan"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-rx-all"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-rx-fcs"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-rx-gro-hw"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-rx-gro-list"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-rx-udp-gro-forwarding"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-rx-udp_tunnel-port-offload"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-rx-vlan-filter"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-rx-vlan-stag-filter"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-rx-vlan-stag-hw-parse"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-sg"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tls-hw-record"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tls-hw-rx-offload"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tls-hw-tx-offload"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tso"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-txvlan"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-checksum-fcoe-crc"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-checksum-ipv4"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-checksum-ipv6"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-checksum-ip-generic"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-checksum-sctp"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-esp-segmentation"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-fcoe-segmentation"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-gre-csum-segmentation"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-gre-segmentation"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-gso-list"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-gso-partial"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-gso-robust"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-ipxip4-segmentation"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-ipxip6-segmentation"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-nocache-copy"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-scatter-gather"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-scatter-gather-fraglist"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-sctp-segmentation"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-tcp6-segmentation"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-tcp-ecn-segmentation"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-tcp-mangleid-segmentation"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-tcp-segmentation"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-tunnel-remcsum-segmentation"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-udp-segmentation"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-udp_tnl-csum-segmentation"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-udp_tnl-segmentation"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="feature-tx-vlan-stag-hw-insert"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="coalesce-adaptive-rx"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-adaptive-tx"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-pkt-rate-high"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-pkt-rate-low"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-rx-frames"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-rx-frames-irq"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-rx-frames-high"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-rx-frames-low"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-rx-usecs"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-rx-usecs-irq"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-rx-usecs-high"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-rx-usecs-low"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-sample-interval"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-stats-block-usecs"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-tx-frames"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-tx-frames-irq"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-tx-frames-high"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-tx-frames-low"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-tx-usecs"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-tx-usecs-irq"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-tx-usecs-high"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="coalesce-tx-usecs-low"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="pause-autoneg"
                   nmcli-description="Whether to automatically negotiate on pause frame of flow control mechanism defined by IEEE 802.3x standard."
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="pause-rx"
                   nmcli-description="Whether RX pause should be enabled. Only valid when automatic negotiation is disabled"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="pause-tx"
                   nmcli-description="Whether TX pause should be enabled. Only valid when automatic negotiation is disabled"
-                  format="ternary" />
+                  format="ternary"
+                  values="on, off, ignore" />
         <property name="ring-rx"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="ring-rx-jumbo"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="ring-rx-mini"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="ring-tx"
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
     </setting>
     <setting name="generic" >
     </setting>
     <setting name="gsm" >
         <property name="auto-config"
                   nmcli-description="When TRUE, the settings such as APN, username, or password will default to values that match the network the modem will register to in the Mobile Broadband Provider database."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="number"
                   nmcli-description="Legacy setting that used to help establishing PPP data sessions for GSM-based modems."
                   format="string" />
@@ -849,7 +1052,8 @@
                   format="string" />
         <property name="password-flags"
                   nmcli-description="Flags indicating how to handle the &quot;password&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="apn"
                   alias="apn"
                   nmcli-description="The GPRS Access Point Name specifying the APN used when establishing a data session with the GSM-based network.  The APN often determines how the user will be billed for their network usage and whether the user has access to the Internet or just a provider-specific walled-garden, so it is important to use the correct APN for the user&apos;s mobile broadband plan. The APN may only be composed of the characters a-z, 0-9, ., and - per GSM 03.60 Section 14.9."
@@ -862,10 +1066,12 @@
                   format="string" />
         <property name="pin-flags"
                   nmcli-description="Flags indicating how to handle the &quot;pin&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="home-only"
                   nmcli-description="When TRUE, only connections to the home network will be allowed. Connections to roaming networks will not be made."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="device-id"
                   nmcli-description="The device unique identifier (as given by the WWAN management service) which this connection applies to.  If given, the connection will only apply to the specified device."
                   format="string" />
@@ -880,7 +1086,8 @@
                   format="integer" />
         <property name="initial-eps-bearer-configure"
                   nmcli-description="For LTE modems, this setting determines whether the initial EPS bearer shall be configured when bringing up the connection.  It is inferred TRUE if initial-eps-bearer-apn is set."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="initial-eps-bearer-apn"
                   nmcli-description="For LTE modems, this sets the APN for the initial EPS bearer that is set up when attaching to the network.  Setting this parameter implies initial-eps-bearer-configure to be TRUE."
                   format="string" />
@@ -888,16 +1095,20 @@
     <setting name="hostname" >
         <property name="priority"
                   nmcli-description="The relative priority of this connection to determine the system hostname. A lower numerical value is better (higher priority).  A connection with higher priority is considered before connections with lower priority. If the value is zero, it can be overridden by a global value from NetworkManager configuration. If the property doesn&apos;t have a value in the global configuration, the value is assumed to be 100. Negative values have the special effect of excluding other connections with a greater numerical priority value; so in presence of at least one negative priority, only connections with the lowest priority value will be used to determine the hostname."
-                  format="integer" />
+                  format="integer"
+                  values="-2147483648 - 2147483647" />
         <property name="from-dhcp"
                   nmcli-description="Whether the system hostname can be determined from DHCP on this connection. When set to NM_TERNARY_DEFAULT (-1), the value from global configuration is used. If the property doesn&apos;t have a value in the global configuration, NetworkManager assumes the value to be NM_TERNARY_TRUE (1)."
-                  format="ternary" />
+                  format="ternary"
+                  values="true/yes/on, false/no/off, default/unknown" />
         <property name="from-dns-lookup"
                   nmcli-description="Whether the system hostname can be determined from reverse DNS lookup of addresses on this device. When set to NM_TERNARY_DEFAULT (-1), the value from global configuration is used. If the property doesn&apos;t have a value in the global configuration, NetworkManager assumes the value to be NM_TERNARY_TRUE (1)."
-                  format="ternary" />
+                  format="ternary"
+                  values="true/yes/on, false/no/off, default/unknown" />
         <property name="only-from-default"
                   nmcli-description="If set to NM_TERNARY_TRUE (1), NetworkManager attempts to get the hostname via DHCPv4/DHCPv6 or reverse DNS lookup on this device only when the device has the default route for the given address family (IPv4/IPv6). If set to NM_TERNARY_FALSE (0), the hostname can be set from this device even if it doesn&apos;t have the default route. When set to NM_TERNARY_DEFAULT (-1), the value from global configuration is used. If the property doesn&apos;t have a value in the global configuration, NetworkManager assumes the value to be NM_TERNARY_FALSE (0)."
-                  format="ternary" />
+                  format="ternary"
+                  values="true/yes/on, false/no/off, default/unknown" />
     </setting>
     <setting name="infiniband" >
         <property name="mac-address"
@@ -911,11 +1122,13 @@
         <property name="transport-mode"
                   alias="transport-mode"
                   nmcli-description="The IP-over-InfiniBand transport mode. Either &quot;datagram&quot; or &quot;connected&quot;."
-                  format="string" />
+                  format="string"
+                  values="datagram, connected" />
         <property name="p-key"
                   alias="p-key"
                   nmcli-description="The InfiniBand p-key to use for this device. A value of -1 means to use the default p-key (aka &quot;the p-key at index 0&quot;). Otherwise, it is a 16-bit unsigned integer, whose high bit 0x8000 is set if it is a &quot;full membership&quot; p-key. The values 0 and 0x8000 are not allowed. With the p-key set, the interface name is always &quot;$parent.$p_key&quot;. Setting &quot;connection.interface-name&quot; to another name is not supported. Note that kernel will internally always set the full membership bit, although the interface name does not reflect that. Usually the user would want to configure a full membership p-key with 0x8000 flag set."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 65535" />
         <property name="parent"
                   alias="parent"
                   nmcli-description="The interface name of the parent device of this device. Normally NULL, but if the &quot;p_key&quot; property is set, then you must specify the base device by setting either this property or &quot;mac-address&quot;."
@@ -925,7 +1138,8 @@
         <property name="mode"
                   alias="mode"
                   nmcli-description="The tunneling mode. Valid values: ipip (1), gre (2), sit (3), isatap (4), vti (5), ip6ip6 (6), ipip6 (7), ip6gre (8), vti6 (9), gretap (10) and ip6gretap (11)"
-                  format="choice (NMIPTunnelMode)" />
+                  format="choice (NMIPTunnelMode)"
+                  values="ipip (1), gre (2), sit (3), isatap (4), vti (5), ip6ip6 (6), ipip6 (7), ip6gre (8), vti6 (9), gretap (10), ip6gretap (11)" />
         <property name="parent"
                   alias="dev"
                   nmcli-description="If given, specifies the parent interface name or parent connection UUID the new device will be bound to so that tunneled packets will only be routed via that interface."
@@ -940,13 +1154,16 @@
                   format="string" />
         <property name="ttl"
                   nmcli-description="The TTL to assign to tunneled packets. 0 is a special value meaning that packets inherit the TTL value."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 255" />
         <property name="tos"
                   nmcli-description="The type of service (IPv4) or traffic class (IPv6) field to be set on tunneled packets."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 255" />
         <property name="path-mtu-discovery"
                   nmcli-description="Whether to enable Path MTU Discovery on this tunnel."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="input-key"
                   nmcli-description="The key used for tunnel input packets; the property is valid only for certain tunnel modes (GRE, IP6GRE). If empty, no key is used."
                   format="string" />
@@ -955,24 +1172,29 @@
                   format="string" />
         <property name="encapsulation-limit"
                   nmcli-description="How many additional levels of encapsulation are permitted to be prepended to packets. This property applies only to IPv6 tunnels. To disable this option, add 0x1 (ip6-ign-encap-limit) to ip-tunnel flags."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 255" />
         <property name="flow-label"
                   nmcli-description="The flow label to assign to tunnel packets. This property applies only to IPv6 tunnels."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 1048575" />
         <property name="fwmark"
                   nmcli-description="The fwmark value to assign to tunnel packets. This property can be set to a non zero value only on VTI and VTI6 tunnels."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="mtu"
                   nmcli-description="If non-zero, only transmit packets of the specified size or smaller, breaking larger packets up into multiple fragments."
                   format="integer" />
         <property name="flags"
                   nmcli-description="Tunnel flags. Currently, the following values are supported: 0x1 (ip6-ign-encap-limit), 0x2 (ip6-use-orig-tclass), 0x4 (ip6-use-orig-flowlabel), 0x8 (ip6-mip6-dev), 0x10 (ip6-rcv-dscp-copy) and 0x20 (ip6-use-orig-fwmark). They are valid only for IPv6 tunnels."
-                  format="flags (NMIPTunnelFlags)" />
+                  format="flags (NMIPTunnelFlags)"
+                  values="none (0x0), ip6-ign-encap-limit (0x1), ip6-use-orig-tclass (0x2), ip6-use-orig-flowlabel (0x4), ip6-mip6-dev (0x8), ip6-rcv-dscp-copy (0x10), ip6-use-orig-fwmark (0x20)" />
     </setting>
     <setting name="ipv4" >
         <property name="method"
                   nmcli-description="The IPv4 connection method."
-                  format="string" />
+                  format="string"
+                  values="auto, link-local, manual, shared, disabled" />
         <property name="dns"
                   nmcli-description="Array of IP addresses of DNS servers. For DoT (DNS over TLS), the SNI server name can be specified by appending &quot;#example.com&quot; to the IP address of the DNS server. This currently only has effect when using systemd-resolved."
                   format="list of IPv4 addresses" />
@@ -984,7 +1206,8 @@
                   format="list of strings" />
         <property name="dns-priority"
                   nmcli-description="DNS servers priority. The relative priority for DNS servers specified by this setting.  A lower numerical value is better (higher priority). Negative values have the special effect of excluding other configurations with a greater numerical priority value; so in presence of at least one negative priority, only DNS servers from connections with the lowest priority value will be used. To avoid all DNS leaks, set the priority of the profile that should be used to the most negative value of all active connections profiles. Zero selects a globally configured default value. If the latter is missing or zero too, it defaults to 50 for VPNs (including WireGuard) and 100 for other connections. Note that the priority is to order DNS settings for multiple active connections.  It does not disambiguate multiple DNS servers within the same connection profile. When multiple devices have configurations with the same priority, VPNs will be considered first, then devices with the best (lowest metric) default route and then all other devices. When using dns=default, servers with higher priority will be on top of resolv.conf. To prioritize a given server over another one within the same connection, just specify them in the desired order. Note that commonly the resolver tries name servers in /etc/resolv.conf in the order listed, proceeding with the next server in the list on failure. See for example the &quot;rotate&quot; option of the dns-options setting. If there are any negative DNS priorities, then only name servers from the devices with that lowest priority will be considered. When using a DNS resolver that supports Conditional Forwarding or Split DNS (with dns=dnsmasq or dns=systemd-resolved settings), each connection is used to query domains in its search list. The search domains determine which name servers to ask, and the DNS priority is used to prioritize name servers based on the domain.  Queries for domains not present in any search list are routed through connections having the &apos;~.&apos; special wildcard domain, which is added automatically to connections with the default route (or can be added manually).  When multiple connections specify the same domain, the one with the best priority (lowest numerical value) wins.  If a sub domain is configured on another interface it will be accepted regardless the priority, unless parent domain on the other interface has a negative priority, which causes the sub domain to be shadowed. With Split DNS one can avoid undesired DNS leaks by properly configuring DNS priorities and the search domains, so that only name servers of the desired interface are configured."
-                  format="integer" />
+                  format="integer"
+                  values="-2147483648 - 2147483647" />
         <property name="addresses"
                   alias="ip4"
                   nmcli-description="A list of IPv4 addresses and their prefix length. Multiple addresses can be separated by comma. For example &quot;192.168.1.5/24, 10.1.0.5/24&quot;. The addresses are listed in decreasing priority, meaning the first address will be the primary address."
@@ -998,21 +1221,26 @@
                   format="list of ipv4.routes objects" />
         <property name="route-metric"
                   nmcli-description="The default metric for routes that don&apos;t explicitly specify a metric. The default value -1 means that the metric is chosen automatically based on the device type. The metric applies to dynamic routes, manual (static) routes that don&apos;t have an explicit metric setting, address prefix routes, and the default route. Note that for IPv6, the kernel accepts zero (0) but coerces it to 1024 (user default). Hence, setting this property to zero effectively mean setting it to 1024. For IPv4, zero is a regular value for the metric."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 4294967295" />
         <property name="route-table"
                   nmcli-description="Enable policy routing (source routing) and set the routing table used when adding routes. This affects all routes, including device-routes, IPv4LL, DHCP, SLAAC, default-routes and static routes. But note that static routes can individually overwrite the setting by explicitly specifying a non-zero routing table. If the table setting is left at zero, it is eligible to be overwritten via global configuration. If the property is zero even after applying the global configuration value, policy routing is disabled for the address family of this connection. Policy routing disabled means that NetworkManager will add all routes to the main table (except static routes that explicitly configure a different table). Additionally, NetworkManager will not delete any extraneous routes from tables except the main table. This is to preserve backward compatibility for users who manage routing tables outside of NetworkManager."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="routing-rules"
                   format="list of ipv4.routing-rules objects" />
         <property name="replace-local-rule"
                   nmcli-description="Connections will default to keep the autogenerated priority 0 local rule unless this setting is set to TRUE."
-                  format="ternary" />
+                  format="ternary"
+                  values="true/yes/on, false/no/off, default/unknown" />
         <property name="ignore-auto-routes"
                   nmcli-description="When &quot;method&quot; is set to &quot;auto&quot; and this property to TRUE, automatically configured routes are ignored and only routes specified in the &quot;routes&quot; property, if any, are used."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="ignore-auto-dns"
                   nmcli-description="When &quot;method&quot; is set to &quot;auto&quot; and this property to TRUE, automatically configured name servers and search domains are ignored and only name servers and search domains specified in the &quot;dns&quot; and &quot;dns-search&quot; properties, if any, are used."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="dhcp-client-id"
                   nmcli-description="A string sent to the DHCP server to identify the local machine which the DHCP server may use to customize the DHCP lease and options. When the property is a hex string (&apos;aa:bb:cc&apos;) it is interpreted as a binary client ID, in which case the first byte is assumed to be the &apos;type&apos; field as per RFC 2132 section 9.14 and the remaining bytes may be an hardware address (e.g. &apos;01:xx:xx:xx:xx:xx:xx&apos; where 1 is the Ethernet ARP type and the rest is a MAC address). If the property is not a hex string it is considered as a non-hardware-address client ID and the &apos;type&apos; field is set to 0. The special values &quot;mac&quot; and &quot;perm-mac&quot; are supported, which use the current or permanent MAC address of the device to generate a client identifier with type ethernet (01). Currently, these options only work for ethernet type of links. The special value &quot;ipv6-duid&quot; uses the DUID from &quot;ipv6.dhcp-duid&quot; property as an RFC4361-compliant client identifier. As IAID it uses &quot;ipv4.dhcp-iaid&quot; and falls back to &quot;ipv6.dhcp-iaid&quot; if unset. The special value &quot;duid&quot; generates a RFC4361-compliant client identifier based on &quot;ipv4.dhcp-iaid&quot; and uses a DUID generated by hashing /etc/machine-id. The special value &quot;stable&quot; is supported to generate a type 0 client identifier based on the stable-id (see connection.stable-id) and a per-host key. If you set the stable-id, you may want to include the &quot;${DEVICE}&quot; or &quot;${MAC}&quot; specifier to get a per-device key. If unset, a globally configured default is used. If still unset, the default depends on the DHCP plugin."
                   format="string" />
@@ -1021,10 +1249,12 @@
                   format="string" />
         <property name="dhcp-timeout"
                   nmcli-description="A timeout for a DHCP transaction in seconds. If zero (the default), a globally configured default is used. If still unspecified, a device specific timeout is used (usually 45 seconds). Set to 2147483647 (MAXINT32) for infinity."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 2147483647" />
         <property name="dhcp-send-hostname"
                   nmcli-description="If TRUE, a hostname is sent to the DHCP server when acquiring a lease. Some DHCP servers use this hostname to update DNS databases, essentially providing a static hostname for the computer.  If the &quot;dhcp-hostname&quot; property is NULL and this property is TRUE, the current persistent hostname of the computer is sent."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="dhcp-hostname"
                   nmcli-description="If the &quot;dhcp-send-hostname&quot; property is TRUE, then the specified name will be sent to the DHCP server when acquiring a lease. This property and &quot;dhcp-fqdn&quot; are mutually exclusive and cannot be set at the same time."
                   format="string" />
@@ -1033,36 +1263,44 @@
                   format="string" />
         <property name="dhcp-hostname-flags"
                   nmcli-description="Flags for the DHCP hostname and FQDN. Currently, this property only includes flags to control the FQDN flags set in the DHCP FQDN option. Supported FQDN flags are NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1), NM_DHCP_HOSTNAME_FLAG_FQDN_ENCODED (0x2) and NM_DHCP_HOSTNAME_FLAG_FQDN_NO_UPDATE (0x4).  When no FQDN flag is set and NM_DHCP_HOSTNAME_FLAG_FQDN_CLEAR_FLAGS (0x8) is set, the DHCP FQDN option will contain no flag. Otherwise, if no FQDN flag is set and NM_DHCP_HOSTNAME_FLAG_FQDN_CLEAR_FLAGS (0x8) is not set, the standard FQDN flags are set in the request: NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1), NM_DHCP_HOSTNAME_FLAG_FQDN_ENCODED (0x2) for IPv4 and NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1) for IPv6. When this property is set to the default value NM_DHCP_HOSTNAME_FLAG_NONE (0x0), a global default is looked up in NetworkManager configuration. If that value is unset or also NM_DHCP_HOSTNAME_FLAG_NONE (0x0), then the standard FQDN flags described above are sent in the DHCP requests."
-                  format="flags (NMDhcpHostnameFlags)" />
+                  format="flags (NMDhcpHostnameFlags)"
+                  values="none (0x0), fqdn-serv-update (0x1), fqdn-encoded (0x2), fqdn-no-update (0x4), fqdn-clear-flags (0x8)" />
         <property name="never-default"
                   nmcli-description="If TRUE, this connection will never be the default connection for this IP type, meaning it will never be assigned the default route by NetworkManager."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="may-fail"
                   nmcli-description="If TRUE, allow overall network configuration to proceed even if the configuration specified by this property times out.  Note that at least one IP configuration must succeed or overall network configuration will still fail.  For example, in IPv6-only networks, setting this property to TRUE on the NMSettingIP4Config allows the overall network configuration to succeed if IPv4 configuration fails but IPv6 configuration completes successfully."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="required-timeout"
                   nmcli-description="The minimum time interval in milliseconds for which dynamic IP configuration should be tried before the connection succeeds. This property is useful for example if both IPv4 and IPv6 are enabled and are allowed to fail. Normally the connection succeeds as soon as one of the two address families completes; by setting a required timeout for e.g. IPv4, one can ensure that even if IP6 succeeds earlier than IPv4, NetworkManager waits some time for IPv4 before the connection becomes active. Note that if &quot;may-fail&quot; is FALSE for the same address family, this property has no effect as NetworkManager needs to wait for the full DHCP timeout. A zero value means that no required timeout is present, -1 means the default value (either configuration ipvx.required-timeout override or zero)."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 2147483647" />
         <property name="dad-timeout"
                   nmcli-description="Timeout in milliseconds used to check for the presence of duplicate IP addresses on the network.  If an address conflict is detected, the activation will fail.  A zero value means that no duplicate address detection is performed, -1 means the default value (either configuration ipvx.dad-timeout override or zero).  A value greater than zero is a timeout in milliseconds. The property is currently implemented only for IPv4."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 30000" />
         <property name="dhcp-vendor-class-identifier"
                   nmcli-description="The Vendor Class Identifier DHCP option (60). Special characters in the data string may be escaped using C-style escapes, nevertheless this property cannot contain nul bytes. If the per-profile value is unspecified (the default), a global connection default gets consulted. If still unspecified, the DHCP option is not sent to the server."
                   format="string" />
         <property name="link-local"
                   nmcli-description="Enable and disable the IPv4 link-local configuration independently of the ipv4.method configuration. This allows a link-local address (169.254.x.y/16) to be obtained in addition to other addresses, such as those manually configured or obtained from a DHCP server. When set to &quot;auto&quot;, the value is dependent on &quot;ipv4.method&quot;. When set to &quot;default&quot;, it honors the global connection default, before falling back to &quot;auto&quot;. Note that if &quot;ipv4.method&quot; is &quot;disabled&quot;, then link local addressing is always disabled too. The default is &quot;default&quot;."
-                  format="choice (NMSettingIP4LinkLocal)" />
+                  format="choice (NMSettingIP4LinkLocal)"
+                  values="default (0), auto (1), disabled (2), enabled (3)" />
         <property name="dhcp-reject-servers"
                   nmcli-description="Array of servers from which DHCP offers must be rejected. This property is useful to avoid getting a lease from misconfigured or rogue servers. For DHCPv4, each element must be an IPv4 address, optionally followed by a slash and a prefix length (e.g. &quot;192.168.122.0/24&quot;). This property is currently not implemented for DHCPv6."
                   format="list of IPv4 addresses" />
         <property name="auto-route-ext-gw"
                   nmcli-description="VPN connections will default to add the route automatically unless this setting is set to FALSE. For other connection types, adding such an automatic route is currently not supported and setting this to TRUE has no effect."
-                  format="ternary" />
+                  format="ternary"
+                  values="true/yes/on, false/no/off, default/unknown" />
     </setting>
     <setting name="ipv6" >
         <property name="method"
                   nmcli-description="The IPv6 connection method."
-                  format="string" />
+                  format="string"
+                  values="ignore, auto, dhcp, link-local, manual, shared, disabled" />
         <property name="dns"
                   nmcli-description="Array of IP addresses of DNS servers. For DoT (DNS over TLS), the SNI server name can be specified by appending &quot;#example.com&quot; to the IP address of the DNS server. This currently only has effect when using systemd-resolved."
                   format="list of IPv6 addresses" />
@@ -1074,7 +1312,8 @@
                   format="list of strings" />
         <property name="dns-priority"
                   nmcli-description="DNS servers priority. The relative priority for DNS servers specified by this setting.  A lower numerical value is better (higher priority). Negative values have the special effect of excluding other configurations with a greater numerical priority value; so in presence of at least one negative priority, only DNS servers from connections with the lowest priority value will be used. To avoid all DNS leaks, set the priority of the profile that should be used to the most negative value of all active connections profiles. Zero selects a globally configured default value. If the latter is missing or zero too, it defaults to 50 for VPNs (including WireGuard) and 100 for other connections. Note that the priority is to order DNS settings for multiple active connections.  It does not disambiguate multiple DNS servers within the same connection profile. When multiple devices have configurations with the same priority, VPNs will be considered first, then devices with the best (lowest metric) default route and then all other devices. When using dns=default, servers with higher priority will be on top of resolv.conf. To prioritize a given server over another one within the same connection, just specify them in the desired order. Note that commonly the resolver tries name servers in /etc/resolv.conf in the order listed, proceeding with the next server in the list on failure. See for example the &quot;rotate&quot; option of the dns-options setting. If there are any negative DNS priorities, then only name servers from the devices with that lowest priority will be considered. When using a DNS resolver that supports Conditional Forwarding or Split DNS (with dns=dnsmasq or dns=systemd-resolved settings), each connection is used to query domains in its search list. The search domains determine which name servers to ask, and the DNS priority is used to prioritize name servers based on the domain.  Queries for domains not present in any search list are routed through connections having the &apos;~.&apos; special wildcard domain, which is added automatically to connections with the default route (or can be added manually).  When multiple connections specify the same domain, the one with the best priority (lowest numerical value) wins.  If a sub domain is configured on another interface it will be accepted regardless the priority, unless parent domain on the other interface has a negative priority, which causes the sub domain to be shadowed. With Split DNS one can avoid undesired DNS leaks by properly configuring DNS priorities and the search domains, so that only name servers of the desired interface are configured."
-                  format="integer" />
+                  format="integer"
+                  values="-2147483648 - 2147483647" />
         <property name="addresses"
                   alias="ip6"
                   nmcli-description="A list of IPv6 addresses and their prefix length. Multiple addresses can be separated by comma. For example &quot;2001:db8:85a3::8a2e:370:7334/64, 2001:db8:85a3::5/64&quot;. The addresses are listed in decreasing priority, meaning the first address will be the primary address. This can make a difference with IPv6 source address selection (RFC 6724, section 5)."
@@ -1088,39 +1327,50 @@
                   format="list of ipv6.routes objects" />
         <property name="route-metric"
                   nmcli-description="The default metric for routes that don&apos;t explicitly specify a metric. The default value -1 means that the metric is chosen automatically based on the device type. The metric applies to dynamic routes, manual (static) routes that don&apos;t have an explicit metric setting, address prefix routes, and the default route. Note that for IPv6, the kernel accepts zero (0) but coerces it to 1024 (user default). Hence, setting this property to zero effectively mean setting it to 1024. For IPv4, zero is a regular value for the metric."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 4294967295" />
         <property name="route-table"
                   nmcli-description="Enable policy routing (source routing) and set the routing table used when adding routes. This affects all routes, including device-routes, IPv4LL, DHCP, SLAAC, default-routes and static routes. But note that static routes can individually overwrite the setting by explicitly specifying a non-zero routing table. If the table setting is left at zero, it is eligible to be overwritten via global configuration. If the property is zero even after applying the global configuration value, policy routing is disabled for the address family of this connection. Policy routing disabled means that NetworkManager will add all routes to the main table (except static routes that explicitly configure a different table). Additionally, NetworkManager will not delete any extraneous routes from tables except the main table. This is to preserve backward compatibility for users who manage routing tables outside of NetworkManager."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="routing-rules"
                   format="list of ipv6.routing-rules objects" />
         <property name="replace-local-rule"
                   nmcli-description="Connections will default to keep the autogenerated priority 0 local rule unless this setting is set to TRUE."
-                  format="ternary" />
+                  format="ternary"
+                  values="true/yes/on, false/no/off, default/unknown" />
         <property name="ignore-auto-routes"
                   nmcli-description="When &quot;method&quot; is set to &quot;auto&quot; and this property to TRUE, automatically configured routes are ignored and only routes specified in the &quot;routes&quot; property, if any, are used."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="ignore-auto-dns"
                   nmcli-description="When &quot;method&quot; is set to &quot;auto&quot; and this property to TRUE, automatically configured name servers and search domains are ignored and only name servers and search domains specified in the &quot;dns&quot; and &quot;dns-search&quot; properties, if any, are used."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="never-default"
                   nmcli-description="If TRUE, this connection will never be the default connection for this IP type, meaning it will never be assigned the default route by NetworkManager."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="may-fail"
                   nmcli-description="If TRUE, allow overall network configuration to proceed even if the configuration specified by this property times out.  Note that at least one IP configuration must succeed or overall network configuration will still fail.  For example, in IPv6-only networks, setting this property to TRUE on the NMSettingIP4Config allows the overall network configuration to succeed if IPv4 configuration fails but IPv6 configuration completes successfully."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="required-timeout"
                   nmcli-description="The minimum time interval in milliseconds for which dynamic IP configuration should be tried before the connection succeeds. This property is useful for example if both IPv4 and IPv6 are enabled and are allowed to fail. Normally the connection succeeds as soon as one of the two address families completes; by setting a required timeout for e.g. IPv4, one can ensure that even if IP6 succeeds earlier than IPv4, NetworkManager waits some time for IPv4 before the connection becomes active. Note that if &quot;may-fail&quot; is FALSE for the same address family, this property has no effect as NetworkManager needs to wait for the full DHCP timeout. A zero value means that no required timeout is present, -1 means the default value (either configuration ipvx.required-timeout override or zero)."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 2147483647" />
         <property name="ip6-privacy"
                   nmcli-description="Configure IPv6 Privacy Extensions for SLAAC, described in RFC4941.  If enabled, it makes the kernel generate a temporary IPv6 address in addition to the public one generated from MAC address via modified EUI-64.  This enhances privacy, but could cause problems in some applications, on the other hand.  The permitted values are: -1: unknown, 0: disabled, 1: enabled (prefer public address), 2: enabled (prefer temporary addresses). Having a per-connection setting set to &quot;-1&quot; (unknown) means fallback to global configuration &quot;ipv6.ip6-privacy&quot;. If also global configuration is unspecified or set to &quot;-1&quot;, fallback to read &quot;/proc/sys/net/ipv6/conf/default/use_tempaddr&quot;. Note that this setting is distinct from the Stable Privacy addresses that can be enabled with the &quot;addr-gen-mode&quot; property&apos;s &quot;stable-privacy&quot; setting as another way of avoiding host tracking with IPv6 addresses."
-                  format="choice (NMSettingIP6ConfigPrivacy)" />
+                  format="choice (NMSettingIP6ConfigPrivacy)"
+                  values="unknown (-1), disabled (0), prefer-public-addr (1), prefer-temp-addr (2)" />
         <property name="addr-gen-mode"
                   nmcli-description="Configure method for creating the IPv6 interface identifer of addresses with RFC4862 IPv6 Stateless Address Autoconfiguration and Link Local addresses. The permitted values are: &quot;eui64&quot; (0), &quot;stable-privacy&quot; (1), &quot;default&quot; (3) or &quot;default-or-eui64&quot; (2). If the property is set to &quot;eui64&quot;, the addresses will be generated using the interface token derived from hardware address. This makes the host part of the address to stay constant, making it possible to track the host&apos;s presence when it changes networks. The address changes when the interface hardware is replaced. If a duplicate address is detected, there is also no fallback to generate another address. When configured, the &quot;ipv6.token&quot; is used instead of the MAC address to generate addresses for stateless autoconfiguration. If the property is set to &quot;stable-privacy&quot;, the interface identifier is generated as specified by RFC7217. This works by hashing a host specific key (see NetworkManager(8) manual), the interface name, the connection&apos;s &quot;connection.stable-id&quot; property and the address prefix.  This improves privacy by making it harder to use the address to track the host&apos;s presence and the address is stable when the network interface hardware is replaced. The special values &quot;default&quot; and &quot;default-or-eui64&quot; will fallback to the global connection default as documented in the NetworkManager.conf(5) manual. If the global default is not specified, the fallback value is &quot;stable-privacy&quot; or &quot;eui64&quot;, respectively. If not specified, when creating a new profile the default is &quot;default&quot;. Note that this setting is distinct from the Privacy Extensions as configured by &quot;ip6-privacy&quot; property and it does not affect the temporary addresses configured with this option."
-                  format="choice (NMSettingIP6ConfigAddrGenMode)" />
+                  format="choice (NMSettingIP6ConfigAddrGenMode)"
+                  values="eui64 (0), stable-privacy (1), default-or-eui64 (2), default (3)" />
         <property name="ra-timeout"
                   nmcli-description="A timeout for waiting Router Advertisements in seconds. If zero (the default), a globally configured default is used. If still unspecified, the timeout depends on the sysctl settings of the device. Set to 2147483647 (MAXINT32) for infinity."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 2147483647" />
         <property name="mtu"
                   nmcli-description="Maximum transmission unit size, in bytes. If zero (the default), the MTU is set automatically from router advertisements or is left equal to the link-layer MTU. If greater than the link-layer MTU, or greater than zero but less than the minimum IPv6 MTU of 1280, this value has no effect."
                   format="integer" />
@@ -1135,19 +1385,23 @@
                   format="string" />
         <property name="dhcp-timeout"
                   nmcli-description="A timeout for a DHCP transaction in seconds. If zero (the default), a globally configured default is used. If still unspecified, a device specific timeout is used (usually 45 seconds). Set to 2147483647 (MAXINT32) for infinity."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 2147483647" />
         <property name="dhcp-send-hostname"
                   nmcli-description="If TRUE, a hostname is sent to the DHCP server when acquiring a lease. Some DHCP servers use this hostname to update DNS databases, essentially providing a static hostname for the computer.  If the &quot;dhcp-hostname&quot; property is NULL and this property is TRUE, the current persistent hostname of the computer is sent."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="dhcp-hostname"
                   nmcli-description="If the &quot;dhcp-send-hostname&quot; property is TRUE, then the specified name will be sent to the DHCP server when acquiring a lease. This property and &quot;dhcp-fqdn&quot; are mutually exclusive and cannot be set at the same time."
                   format="string" />
         <property name="dhcp-hostname-flags"
                   nmcli-description="Flags for the DHCP hostname and FQDN. Currently, this property only includes flags to control the FQDN flags set in the DHCP FQDN option. Supported FQDN flags are NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1), NM_DHCP_HOSTNAME_FLAG_FQDN_ENCODED (0x2) and NM_DHCP_HOSTNAME_FLAG_FQDN_NO_UPDATE (0x4).  When no FQDN flag is set and NM_DHCP_HOSTNAME_FLAG_FQDN_CLEAR_FLAGS (0x8) is set, the DHCP FQDN option will contain no flag. Otherwise, if no FQDN flag is set and NM_DHCP_HOSTNAME_FLAG_FQDN_CLEAR_FLAGS (0x8) is not set, the standard FQDN flags are set in the request: NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1), NM_DHCP_HOSTNAME_FLAG_FQDN_ENCODED (0x2) for IPv4 and NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1) for IPv6. When this property is set to the default value NM_DHCP_HOSTNAME_FLAG_NONE (0x0), a global default is looked up in NetworkManager configuration. If that value is unset or also NM_DHCP_HOSTNAME_FLAG_NONE (0x0), then the standard FQDN flags described above are sent in the DHCP requests."
-                  format="flags (NMDhcpHostnameFlags)" />
+                  format="flags (NMDhcpHostnameFlags)"
+                  values="none (0x0), fqdn-serv-update (0x1), fqdn-encoded (0x2), fqdn-no-update (0x4), fqdn-clear-flags (0x8)" />
         <property name="auto-route-ext-gw"
                   nmcli-description="VPN connections will default to add the route automatically unless this setting is set to FALSE. For other connection types, adding such an automatic route is currently not supported and setting this to TRUE has no effect."
-                  format="ternary" />
+                  format="ternary"
+                  values="true/yes/on, false/no/off, default/unknown" />
         <property name="token"
                   nmcli-description="Configure the token for draft-chown-6man-tokenised-ipv6-identifiers-02 IPv6 tokenized interface identifiers. Useful with eui64 addr-gen-mode. When set, the token is used as IPv6 interface identifier instead of the hardware address. This only applies to addresses from stateless autoconfiguration, not to IPv6 link local addresses."
                   format="string" />
@@ -1155,16 +1409,20 @@
     <setting name="link" >
         <property name="gso-max-segments"
                   nmcli-description="The maximum segments of a Generic Segment Offload packet the device should accept. The value must be between 0 and 4294967295. When set to -1, the existing value is preserved."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 4294967295" />
         <property name="gso-max-size"
                   nmcli-description="The maximum size of a Generic Segment Offload packet the device should accept. The value must be between 0 and 4294967295. When set to -1, the existing value is preserved."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 4294967295" />
         <property name="gro-max-size"
                   nmcli-description="The maximum size of a packet built by the Generic Receive Offload stack for this device. The value must be between 0 and 4294967295. When set to -1, the existing value is preserved."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 4294967295" />
         <property name="tx-queue-length"
                   nmcli-description="The size of the transmit queue for the device, in number of packets. The value must be between 0 and 4294967295. When set to -1, the existing value is preserved."
-                  format="integer" />
+                  format="integer"
+                  values="-1 - 4294967295" />
     </setting>
     <setting name="loopback" >
         <property name="mtu"
@@ -1180,18 +1438,21 @@
         <property name="mode"
                   alias="mode"
                   nmcli-description="Specifies how the CAK (Connectivity Association Key) for MKA (MACsec Key Agreement) is obtained."
-                  format="choice (NMSettingMacsecMode)" />
+                  format="choice (NMSettingMacsecMode)"
+                  values="psk (0), eap (1)" />
         <property name="encrypt"
                   alias="encrypt"
                   nmcli-description="Whether the transmitted traffic must be encrypted."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="mka-cak"
                   alias="cak"
                   nmcli-description="The pre-shared CAK (Connectivity Association Key) for MACsec Key Agreement. Must be a string of 32 hexadecimal characters."
                   format="string" />
         <property name="mka-cak-flags"
                   nmcli-description="Flags indicating how to handle the &quot;mka-cak&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="mka-ckn"
                   alias="ckn"
                   nmcli-description="The pre-shared CKN (Connectivity-association Key Name) for MACsec Key Agreement. Must be a string of hexadecimal characters with a even length between 2 and 64."
@@ -1199,13 +1460,16 @@
         <property name="port"
                   alias="port"
                   nmcli-description="The port component of the SCI (Secure Channel Identifier), between 1 and 65534."
-                  format="integer" />
+                  format="integer"
+                  values="1 - 65534" />
         <property name="validation"
                   nmcli-description="Specifies the validation mode for incoming frames."
-                  format="choice (NMSettingMacsecValidation)" />
+                  format="choice (NMSettingMacsecValidation)"
+                  values="disable (0), check (1), strict (2)" />
         <property name="send-sci"
                   nmcli-description="Specifies whether the SCI (Secure Channel Identifier) is included in every packet."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
     </setting>
     <setting name="macvlan" >
         <property name="parent"
@@ -1215,14 +1479,17 @@
         <property name="mode"
                   alias="mode"
                   nmcli-description="The macvlan mode, which specifies the communication mechanism between multiple macvlans on the same lower device."
-                  format="choice (NMSettingMacvlanMode)" />
+                  format="choice (NMSettingMacvlanMode)"
+                  values="vepa (1), bridge (2), private (3), passthru (4), source (5)" />
         <property name="promiscuous"
                   nmcli-description="Whether the interface should be put in promiscuous mode."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="tap"
                   alias="tap"
                   nmcli-description="Whether the interface should be a MACVTAP."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
     </setting>
     <setting name="match" >
         <property name="interface-name"
@@ -1241,19 +1508,24 @@
     <setting name="ovs-bridge" >
         <property name="fail-mode"
                   nmcli-description="The bridge failure mode. One of &quot;secure&quot;, &quot;standalone&quot; or empty."
-                  format="string" />
+                  format="string"
+                  values="secure, standalone" />
         <property name="mcast-snooping-enable"
                   nmcli-description="Enable or disable multicast snooping."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="rstp-enable"
                   nmcli-description="Enable or disable RSTP."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="stp-enable"
                   nmcli-description="Enable or disable STP."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="datapath-type"
                   nmcli-description="The data path type. One of &quot;system&quot;, &quot;netdev&quot; or empty."
-                  format="string" />
+                  format="string"
+                  values="system, netdev" />
     </setting>
     <setting name="ovs-dpdk" >
         <property name="devargs"
@@ -1261,23 +1533,28 @@
                   format="string" />
         <property name="n-rxq"
                   nmcli-description="Open vSwitch DPDK number of rx queues. Defaults to zero which means to leave the parameter in OVS unspecified and effectively configures one queue."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="n-rxq-desc"
                   nmcli-description="The rx queue size (number of rx descriptors) for DPDK ports. Must be zero or a power of 2 between 1 and 4096, and supported by the hardware. Defaults to zero which means to leave the parameter in OVS unspecified and effectively configures 2048 descriptors."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4096" />
         <property name="n-txq-desc"
                   nmcli-description="The tx queue size (number of tx descriptors) for DPDK ports. Must be zero or a power of 2 between 1 and 4096, and supported by the hardware. Defaults to zero which means to leave the parameter in OVS unspecified and effectively configures 2048 descriptors."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4096" />
     </setting>
     <setting name="ovs-external-ids" >
     </setting>
     <setting name="ovs-interface" >
         <property name="type"
                   nmcli-description="The interface type. Either &quot;internal&quot;, &quot;system&quot;, &quot;patch&quot;, &quot;dpdk&quot;, or empty."
-                  format="string" />
+                  format="string"
+                  values="internal, system, patch, dpdk" />
         <property name="ofport-request"
                   nmcli-description="Open vSwitch openflow port number. Defaults to zero which means that port number will not be specified and it will be chosen randomly by ovs. OpenFlow ports are the network interfaces for passing packets between OpenFlow processing and the rest of the network. OpenFlow switches connect logically to each other via their OpenFlow ports."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 65279" />
     </setting>
     <setting name="ovs-other-config" >
     </setting>
@@ -1289,81 +1566,104 @@
     <setting name="ovs-port" >
         <property name="vlan-mode"
                   nmcli-description="The VLAN mode. One of &quot;access&quot;, &quot;native-tagged&quot;, &quot;native-untagged&quot;, &quot;trunk&quot;, &quot;dot1q-tunnel&quot; or unset."
-                  format="string" />
+                  format="string"
+                  values="access, native-tagged, native-untagged, trunk, dot1q-tunnel" />
         <property name="trunks"
                   nmcli-description="A list of VLAN ranges that this port trunks. The property is valid only for ports with mode &quot;trunk&quot;, &quot;native-tagged&quot;, or &quot;native-untagged port&quot;. If it is empty, the port trunks all VLANs."
                   format="list of ovs-port.trunks objects" />
         <property name="tag"
                   nmcli-description="The VLAN tag in the range 0-4095."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4095" />
         <property name="lacp"
                   nmcli-description="LACP mode. One of &quot;active&quot;, &quot;off&quot;, or &quot;passive&quot;."
-                  format="string" />
+                  format="string"
+                  values="active, off, passive" />
         <property name="bond-mode"
                   nmcli-description="Bonding mode. One of &quot;active-backup&quot;, &quot;balance-slb&quot;, or &quot;balance-tcp&quot;."
-                  format="string" />
+                  format="string"
+                  values="active-backup, balance-slb, balance-tcp" />
         <property name="bond-updelay"
                   nmcli-description="The time port must be active before it starts forwarding traffic."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="bond-downdelay"
                   nmcli-description="The time port must be inactive in order to be considered down."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
     </setting>
     <setting name="ppp" >
         <property name="noauth"
                   nmcli-description="If TRUE, do not require the other side (usually the PPP server) to authenticate itself to the client.  If FALSE, require authentication from the remote side.  In almost all cases, this should be TRUE."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="refuse-eap"
                   nmcli-description="If TRUE, the EAP authentication method will not be used."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="refuse-pap"
                   nmcli-description="If TRUE, the PAP authentication method will not be used."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="refuse-chap"
                   nmcli-description="If TRUE, the CHAP authentication method will not be used."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="refuse-mschap"
                   nmcli-description="If TRUE, the MSCHAP authentication method will not be used."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="refuse-mschapv2"
                   nmcli-description="If TRUE, the MSCHAPv2 authentication method will not be used."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="nobsdcomp"
                   nmcli-description="If TRUE, BSD compression will not be requested."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="nodeflate"
                   nmcli-description="If TRUE, &quot;deflate&quot; compression will not be requested."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="no-vj-comp"
                   nmcli-description="If TRUE, Van Jacobsen TCP header compression will not be requested."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="require-mppe"
                   nmcli-description="If TRUE, MPPE (Microsoft Point-to-Point Encryption) will be required for the PPP session.  If either 64-bit or 128-bit MPPE is not available the session will fail.  Note that MPPE is not used on mobile broadband connections."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="require-mppe-128"
                   nmcli-description="If TRUE, 128-bit MPPE (Microsoft Point-to-Point Encryption) will be required for the PPP session, and the &quot;require-mppe&quot; property must also be set to TRUE.  If 128-bit MPPE is not available the session will fail."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="mppe-stateful"
                   nmcli-description="If TRUE, stateful MPPE is used.  See pppd documentation for more information on stateful MPPE."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="crtscts"
                   nmcli-description="If TRUE, specify that pppd should set the serial port to use hardware flow control with RTS and CTS signals.  This value should normally be set to FALSE."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="baud"
                   nmcli-description="If non-zero, instruct pppd to set the serial port to the specified baudrate.  This value should normally be left as 0 to automatically choose the speed."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="mru"
                   nmcli-description="If non-zero, instruct pppd to request that the peer send packets no larger than the specified size.  If non-zero, the MRU should be between 128 and 16384."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 16384" />
         <property name="mtu"
                   nmcli-description="If non-zero, instruct pppd to send packets no larger than the specified size."
                   format="integer" />
         <property name="lcp-echo-failure"
                   nmcli-description="If non-zero, instruct pppd to presume the connection to the peer has failed if the specified number of LCP echo-requests go unanswered by the peer.  The &quot;lcp-echo-interval&quot; property must also be set to a non-zero value if this property is used."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="lcp-echo-interval"
                   nmcli-description="If non-zero, instruct pppd to send an LCP echo-request frame to the peer every n seconds (where n is the specified value).  Note that some PPP peers will respond to echo requests and some will not, and it is not possible to autodetect this."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
     </setting>
     <setting name="pppoe" >
         <property name="parent"
@@ -1384,17 +1684,20 @@
                   format="string" />
         <property name="password-flags"
                   nmcli-description="Flags indicating how to handle the &quot;password&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
     </setting>
     <setting name="proxy" >
         <property name="method"
                   alias="method"
                   nmcli-description="Method for proxy configuration, Default is NM_SETTING_PROXY_METHOD_NONE (0)"
-                  format="choice (NMSettingProxyMethod)" />
+                  format="choice (NMSettingProxyMethod)"
+                  values="none (0), auto (1)" />
         <property name="browser-only"
                   alias="browser-only"
                   nmcli-description="Whether the proxy configuration is for browser only."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="pac-url"
                   alias="pac-url"
                   nmcli-description="PAC URL for obtaining PAC file."
@@ -1407,30 +1710,37 @@
     <setting name="serial" >
         <property name="baud"
                   nmcli-description="Speed to use for communication over the serial port.  Note that this value usually has no effect for mobile broadband modems as they generally ignore speed settings and use the highest available speed."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="bits"
                   nmcli-description="Byte-width of the serial communication. The 8 in &quot;8n1&quot; for example."
-                  format="integer" />
+                  format="integer"
+                  values="5 - 8" />
         <property name="parity"
                   nmcli-description="Parity setting of the serial port."
-                  format="choice (NMSettingSerialParity)" />
+                  format="choice (NMSettingSerialParity)"
+                  values="none/N/n (0), even/E/e (1), odd/O/o (2)" />
         <property name="stopbits"
                   nmcli-description="Number of stop bits for communication on the serial port.  Either 1 or 2. The 1 in &quot;8n1&quot; for example."
-                  format="integer" />
+                  format="integer"
+                  values="1 - 2" />
         <property name="send-delay"
                   nmcli-description="Time to delay between each byte sent to the modem, in microseconds."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 18446744073709551615" />
     </setting>
     <setting name="sriov" >
         <property name="total-vfs"
                   nmcli-description="The total number of virtual functions to create. Note that when the sriov setting is present NetworkManager enforces the number of virtual functions on the interface (also when it is zero) during activation and resets it upon deactivation. To prevent any changes to SR-IOV parameters don&apos;t add a sriov setting to the connection."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="vfs"
                   nmcli-description="Array of virtual function descriptors. Each VF descriptor is a dictionary mapping attribute names to GVariant values. The &apos;index&apos; entry is mandatory for each VF. When represented as string a VF is in the form: &quot;INDEX [ATTR=VALUE[ ATTR=VALUE]...]&quot;. for example: &quot;2 mac=00:11:22:33:44:55 spoof-check=true&quot;. Multiple VFs can be specified using a comma as separator. Currently, the following attributes are supported: mac, spoof-check, trust, min-tx-rate, max-tx-rate, vlans. The &quot;vlans&quot; attribute is represented as a semicolon-separated list of VLAN descriptors, where each descriptor has the form &quot;ID[.PRIORITY[.PROTO]]&quot;. PROTO can be either &apos;q&apos; for 802.1Q (the default) or &apos;ad&apos; for 802.1ad."
                   format="list of sriov.vfs objects" />
         <property name="autoprobe-drivers"
                   nmcli-description="Whether to autoprobe virtual functions by a compatible driver. If set to NM_TERNARY_TRUE (1), the kernel will try to bind VFs to a compatible driver and if this succeeds a new network interface will be instantiated for each VF. If set to NM_TERNARY_FALSE (0), VFs will not be claimed and no network interfaces will be created for them. When set to NM_TERNARY_DEFAULT (-1), the global default is used; in case the global default is unspecified it is assumed to be NM_TERNARY_TRUE (1)."
-                  format="ternary" />
+                  format="ternary"
+                  values="true/yes/on, false/no/off, default/unknown" />
     </setting>
     <setting name="tc" >
         <property name="qdiscs"
@@ -1447,46 +1757,60 @@
                   format="string" />
         <property name="notify-peers-count"
                   nmcli-description="Corresponds to the teamd notify_peers.count."
-                  format="integer" />
+                  format="integer"
+                  values="-2147483648 - 2147483647" />
         <property name="notify-peers-interval"
                   nmcli-description="Corresponds to the teamd notify_peers.interval."
-                  format="integer" />
+                  format="integer"
+                  values="-2147483648 - 2147483647" />
         <property name="mcast-rejoin-count"
                   nmcli-description="Corresponds to the teamd mcast_rejoin.count."
-                  format="integer" />
+                  format="integer"
+                  values="-2147483648 - 2147483647" />
         <property name="mcast-rejoin-interval"
                   nmcli-description="Corresponds to the teamd mcast_rejoin.interval."
-                  format="integer" />
+                  format="integer"
+                  values="-2147483648 - 2147483647" />
         <property name="runner"
                   nmcli-description="Corresponds to the teamd runner.name. Permitted values are: &quot;roundrobin&quot;, &quot;broadcast&quot;, &quot;activebackup&quot;, &quot;loadbalance&quot;, &quot;lacp&quot;, &quot;random&quot;."
-                  format="string" />
+                  format="string"
+                  values="broadcast, roundrobin, random, activebackup, loadbalance, lacp" />
         <property name="runner-hwaddr-policy"
                   nmcli-description="Corresponds to the teamd runner.hwaddr_policy."
-                  format="string" />
+                  format="string"
+                  values="same_all, by_active, only_active" />
         <property name="runner-tx-hash"
                   nmcli-description="Corresponds to the teamd runner.tx_hash."
-                  format="list of strings" />
+                  format="list of strings"
+                  values="eth, vlan, ipv4, ipv6, ip, l3, tcp, udp, sctp, l4" />
         <property name="runner-tx-balancer"
                   nmcli-description="Corresponds to the teamd runner.tx_balancer.name."
-                  format="string" />
+                  format="string"
+                  values="basic" />
         <property name="runner-tx-balancer-interval"
                   nmcli-description="Corresponds to the teamd runner.tx_balancer.interval."
-                  format="integer" />
+                  format="integer"
+                  values="-2147483648 - 2147483647" />
         <property name="runner-active"
                   nmcli-description="Corresponds to the teamd runner.active."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="runner-fast-rate"
                   nmcli-description="Corresponds to the teamd runner.fast_rate."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="runner-sys-prio"
                   nmcli-description="Corresponds to the teamd runner.sys_prio."
-                  format="integer" />
+                  format="integer"
+                  values="-2147483648 - 2147483647" />
         <property name="runner-min-ports"
                   nmcli-description="Corresponds to the teamd runner.min_ports."
-                  format="integer" />
+                  format="integer"
+                  values="-2147483648 - 2147483647" />
         <property name="runner-agg-select-policy"
                   nmcli-description="Corresponds to the teamd runner.agg_select_policy."
-                  format="string" />
+                  format="string"
+                  values="lacp_prio, lacp_prio_stable, bandwidth, count, port_config" />
         <property name="link-watchers"
                   nmcli-description="Link watchers configuration for the connection: each link watcher is defined by a dictionary, whose keys depend upon the selected link watcher. Available link watchers are &apos;ethtool&apos;, &apos;nsna_ping&apos; and &apos;arp_ping&apos; and it is specified in the dictionary with the key &apos;name&apos;. Available keys are:   ethtool: &apos;delay-up&apos;, &apos;delay-down&apos;, &apos;init-wait&apos;; nsna_ping: &apos;init-wait&apos;, &apos;interval&apos;, &apos;missed-max&apos;, &apos;target-host&apos;; arp_ping: all the ones in nsna_ping and &apos;source-host&apos;, &apos;validate-active&apos;, &apos;validate-inactive&apos;, &apos;send-always&apos;. See teamd.conf man for more details."
                   format="list of team.link-watchers objects" />
@@ -1498,19 +1822,24 @@
                   format="string" />
         <property name="queue-id"
                   nmcli-description="Corresponds to the teamd ports.PORTIFNAME.queue_id. When set to -1 means the parameter is skipped from the json config."
-                  format="integer" />
+                  format="integer"
+                  values="-2147483648 - 2147483647" />
         <property name="prio"
                   nmcli-description="Corresponds to the teamd ports.PORTIFNAME.prio."
-                  format="integer" />
+                  format="integer"
+                  values="-2147483648 - 2147483647" />
         <property name="sticky"
                   nmcli-description="Corresponds to the teamd ports.PORTIFNAME.sticky."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="lacp-prio"
                   nmcli-description="Corresponds to the teamd ports.PORTIFNAME.lacp_prio."
-                  format="integer" />
+                  format="integer"
+                  values="-2147483648 - 2147483647" />
         <property name="lacp-key"
                   nmcli-description="Corresponds to the teamd ports.PORTIFNAME.lacp_key."
-                  format="integer" />
+                  format="integer"
+                  values="-2147483648 - 2147483647" />
         <property name="link-watchers"
                   nmcli-description="Link watchers configuration for the connection: each link watcher is defined by a dictionary, whose keys depend upon the selected link watcher. Available link watchers are &apos;ethtool&apos;, &apos;nsna_ping&apos; and &apos;arp_ping&apos; and it is specified in the dictionary with the key &apos;name&apos;. Available keys are:   ethtool: &apos;delay-up&apos;, &apos;delay-down&apos;, &apos;init-wait&apos;; nsna_ping: &apos;init-wait&apos;, &apos;interval&apos;, &apos;missed-max&apos;, &apos;target-host&apos;; arp_ping: all the ones in nsna_ping and &apos;source-host&apos;, &apos;validate-active&apos;, &apos;validate-inactive&apos;, &apos;send-always&apos;. See teamd.conf man for more details."
                   format="list of team-port.link-watchers objects" />
@@ -1519,7 +1848,8 @@
         <property name="mode"
                   alias="mode"
                   nmcli-description="The operating mode of the virtual device. Allowed values are NM_SETTING_TUN_MODE_TUN (1) to create a layer 3 device and NM_SETTING_TUN_MODE_TAP (2) to create an Ethernet-like layer 2 one."
-                  format="choice (NMSettingTunMode)" />
+                  format="choice (NMSettingTunMode)"
+                  values="tun (1), tap (2)" />
         <property name="owner"
                   alias="owner"
                   nmcli-description="The user ID which will own the device. If set to NULL everyone will be able to use the device."
@@ -1531,15 +1861,18 @@
         <property name="pi"
                   alias="pi"
                   nmcli-description="If TRUE the interface will prepend a 4 byte header describing the physical interface to the packets."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="vnet-hdr"
                   alias="vnet-hdr"
                   nmcli-description="If TRUE the IFF_VNET_HDR the tunnel packets will include a virtio network header."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="multi-queue"
                   alias="multi-queue"
                   nmcli-description="If the property is set to TRUE, the interface will support multiple file descriptors (queues) to parallelize packet sending or receiving. Otherwise, the interface will only support a single queue."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
     </setting>
     <setting name="user" >
     </setting>
@@ -1557,14 +1890,17 @@
         <property name="id"
                   alias="id"
                   nmcli-description="The VLAN identifier that the interface created by this connection should be assigned. The valid range is from 0 to 4094, without the reserved id 4095."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4095" />
         <property name="flags"
                   alias="flags"
                   nmcli-description="One or more flags which control the behavior and features of the VLAN interface.  Flags include NM_VLAN_FLAG_REORDER_HEADERS (0x1) (reordering of output packet headers), NM_VLAN_FLAG_GVRP (0x2) (use of the GVRP protocol), and NM_VLAN_FLAG_LOOSE_BINDING (0x4) (loose binding of the interface to its master device&apos;s operating state). NM_VLAN_FLAG_MVRP (0x8) (use of the MVRP protocol). The default value of this property is NM_VLAN_FLAG_REORDER_HEADERS, but it used to be 0. To preserve backward compatibility, the default-value in the D-Bus API continues to be 0 and a missing property on D-Bus is still considered as 0."
-                  format="flags (NMVlanFlags)" />
+                  format="flags (NMVlanFlags)"
+                  values="reorder-headers (0x1), gvrp (0x2), loose-binding (0x4), mvrp (0x8)" />
         <property name="protocol"
                   nmcli-description="Specifies the VLAN protocol to use for encapsulation. Supported values are: &apos;802.1Q&apos;, &apos;802.1ad&apos;. If not specified the default value is &apos;802.1Q&apos;."
-                  format="string" />
+                  format="string"
+                  values="802.1Q, 802.1ad" />
         <property name="ingress-priority-map"
                   alias="ingress"
                   nmcli-description="For incoming packets, a list of mappings from 802.1p priorities to Linux SKB priorities.  The mapping is given in the format &quot;from:to&quot; where both &quot;from&quot; and &quot;to&quot; are unsigned integers, ie &quot;7:3&quot;."
@@ -1591,16 +1927,19 @@
                   format="list of key/value options" />
         <property name="persistent"
                   nmcli-description="If the VPN service supports persistence, and this property is TRUE, the VPN will attempt to stay connected across link changes and outages, until explicitly disconnected."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="timeout"
                   nmcli-description="Timeout for the VPN service to establish the connection. Some services may take quite a long time to connect. Value of 0 means a default timeout, which is 60 seconds (unless overridden by vpn.timeout in configuration file). Values greater than zero mean timeout in seconds."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
     </setting>
     <setting name="vrf" >
         <property name="table"
                   alias="table"
                   nmcli-description="The routing table for this VRF."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
     </setting>
     <setting name="vxlan" >
         <property name="parent"
@@ -1610,7 +1949,8 @@
         <property name="id"
                   alias="id"
                   nmcli-description="Specifies the VXLAN Network Identifier (or VXLAN Segment Identifier) to use."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 16777215" />
         <property name="local"
                   alias="local"
                   nmcli-description="If given, specifies the source IP address to use in outgoing packets."
@@ -1622,42 +1962,54 @@
         <property name="source-port-min"
                   alias="source-port-min"
                   nmcli-description="Specifies the minimum UDP source port to communicate to the remote VXLAN tunnel endpoint."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 65535" />
         <property name="source-port-max"
                   alias="source-port-max"
                   nmcli-description="Specifies the maximum UDP source port to communicate to the remote VXLAN tunnel endpoint."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 65535" />
         <property name="destination-port"
                   alias="destination-port"
                   nmcli-description="Specifies the UDP destination port to communicate to the remote VXLAN tunnel endpoint."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 65535" />
         <property name="tos"
                   nmcli-description="Specifies the TOS value to use in outgoing packets."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 255" />
         <property name="ttl"
                   nmcli-description="Specifies the time-to-live value to use in outgoing packets."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 255" />
         <property name="ageing"
                   nmcli-description="Specifies the lifetime in seconds of FDB entries learnt by the kernel."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="limit"
                   nmcli-description="Specifies the maximum number of FDB entries. A value of zero means that the kernel will store unlimited entries."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="learning"
                   nmcli-description="Specifies whether unknown source link layer addresses and IP addresses are entered into the VXLAN device forwarding database."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="proxy"
                   nmcli-description="Specifies whether ARP proxy is turned on."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="rsc"
                   nmcli-description="Specifies whether route short circuit is turned on."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="l2-miss"
                   nmcli-description="Specifies whether netlink LL ADDR miss notifications are generated."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="l3-miss"
                   nmcli-description="Specifies whether netlink IP ADDR miss notifications are generated."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
     </setting>
     <setting name="wifi-p2p" >
         <property name="peer"
@@ -1666,7 +2018,8 @@
                   format="MAC address" />
         <property name="wps-method"
                   nmcli-description="Flags indicating which mode of WPS is to be used. There&apos;s little point in changing the default setting as NetworkManager will automatically determine the best method to use."
-                  format="flags (NMSettingWirelessSecurityWpsMethod)" />
+                  format="flags (NMSettingWirelessSecurityWpsMethod)"
+                  values="default (0x0), disabled (0x1), auto (0x2), pbc (0x4), pin (0x8)" />
         <property name="wfd-ies"
                   nmcli-description="The Wi-Fi Display (WFD) Information Elements (IEs) to set. Wi-Fi Display requires a protocol specific information element to be set in certain Wi-Fi frames. These can be specified here for the purpose of establishing a connection. This setting is only useful when implementing a Wi-Fi Display client."
                   format="bytes" />
@@ -1687,25 +2040,31 @@
                   format="string" />
         <property name="private-key-flags"
                   nmcli-description="Flags indicating how to handle the &quot;private-key&quot; property."
-                  format="flags (NMSettingSecretFlags)" />
+                  format="flags (NMSettingSecretFlags)"
+                  values="none (0x0), agent-owned (0x1), not-saved (0x2), not-required (0x4)" />
         <property name="listen-port"
                   nmcli-description="The listen-port. If listen-port is not specified, the port will be chosen randomly when the interface comes up."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 65535" />
         <property name="fwmark"
                   nmcli-description="The use of fwmark is optional and is by default off. Setting it to 0 disables it. Otherwise, it is a 32-bit fwmark for outgoing packets. Note that &quot;ip4-auto-default-route&quot; or &quot;ip6-auto-default-route&quot; enabled, implies to automatically choose a fwmark."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 4294967295" />
         <property name="peer-routes"
                   nmcli-description="Whether to automatically add routes for the AllowedIPs ranges of the peers. If TRUE (the default), NetworkManager will automatically add routes in the routing tables according to ipv4.route-table and ipv6.route-table. Usually you want this automatism enabled. If FALSE, no such routes are added automatically. In this case, the user may want to configure static routes in ipv4.routes and ipv6.routes, respectively. Note that if the peer&apos;s AllowedIPs is &quot;0.0.0.0/0&quot; or &quot;::/0&quot; and the profile&apos;s ipv4.never-default or ipv6.never-default setting is enabled, the peer route for this peer won&apos;t be added automatically."
-                  format="boolean" />
+                  format="boolean"
+                  values="true/yes/on, false/no/off" />
         <property name="mtu"
                   nmcli-description="If non-zero, only transmit packets of the specified size or smaller, breaking larger packets up into multiple fragments. If zero a default MTU is used. Note that contrary to wg-quick&apos;s MTU setting, this does not take into account the current routes at the time of activation."
                   format="integer" />
         <property name="ip4-auto-default-route"
                   nmcli-description="Whether to enable special handling of the IPv4 default route. If enabled, the IPv4 default route from wireguard.peer-routes will be placed to a dedicated routing-table and two policy routing rules will be added. The fwmark number is also used as routing-table for the default-route, and if fwmark is zero, an unused fwmark/table is chosen automatically. This corresponds to what wg-quick does with Table=auto and what WireGuard calls &quot;Improved Rule-based Routing&quot;. Note that for this automatism to work, you usually don&apos;t want to set ipv4.gateway, because that will result in a conflicting default route. Leaving this at the default will enable this option automatically if ipv4.never-default is not set and there are any peers that use a default-route as allowed-ips. Since this automatism only makes sense if you also have a peer with an /0 allowed-ips, it is usually not necessary to enable this explicitly. However, you can disable it if you want to configure your own routing and rules."
-                  format="ternary" />
+                  format="ternary"
+                  values="true/yes/on, false/no/off, default/unknown" />
         <property name="ip6-auto-default-route"
                   nmcli-description="Like ip4-auto-default-route, but for the IPv6 default route."
-                  format="ternary" />
+                  format="ternary"
+                  values="true/yes/on, false/no/off, default/unknown" />
     </setting>
     <setting name="wpan" >
         <property name="mac-address"
@@ -1715,18 +2074,22 @@
         <property name="short-address"
                   alias="short-addr"
                   nmcli-description="Short IEEE 802.15.4 address to be used within a restricted environment."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 65535" />
         <property name="pan-id"
                   alias="pan-id"
                   nmcli-description="IEEE 802.15.4 Personal Area Network (PAN) identifier."
-                  format="integer" />
+                  format="integer"
+                  values="0 - 65535" />
         <property name="page"
                   alias="page"
                   nmcli-description="IEEE 802.15.4 channel page. A positive integer or -1, meaning &quot;do not set, use whatever the device is already set to&quot;."
-                  format="integer" />
+                  format="integer"
+                  values="-32768 - 32767" />
         <property name="channel"
                   alias="channel"
                   nmcli-description="IEEE 802.15.4 channel. A positive integer or -1, meaning &quot;do not set, use whatever the device is already set to&quot;."
-                  format="integer" />
+                  format="integer"
+                  values="-32768 - 32767" />
     </setting>
 </nm-setting-docs>
diff --git a/tools/generate-docs-nm-settings-docs-merge.py b/tools/generate-docs-nm-settings-docs-merge.py
index a927400f08..e44dac9c93 100755
--- a/tools/generate-docs-nm-settings-docs-merge.py
+++ b/tools/generate-docs-nm-settings-docs-merge.py
@@ -296,6 +296,7 @@ for setting_name in iter_keys_of_dicts(settings_roots, key_fcn_setting_name):
         else:
             node_set_attr(property_node, "type", properties_attrs)
 
+        node_set_attr(property_node, "values", properties_attrs)
         node_set_attr(property_node, "default", properties_attrs)
         node_set_attr(property_node, "alias", properties_attrs)