diff --git a/include/nm-dbus-glib-types.h b/include/nm-dbus-glib-types.h
index cfb08274c6..0f8c542e82 100644
--- a/include/nm-dbus-glib-types.h
+++ b/include/nm-dbus-glib-types.h
@@ -34,7 +34,7 @@
 #define DBUS_TYPE_G_MAP_OF_STRING           (dbus_g_type_get_map ("GHashTable", G_TYPE_STRING, G_TYPE_STRING))
 #define DBUS_TYPE_G_LIST_OF_STRING          (dbus_g_type_get_collection ("GSList", G_TYPE_STRING))
 
-#define DBUS_TYPE_G_IP6_ADDRESS             (dbus_g_type_get_struct ("GValueArray", DBUS_TYPE_G_UCHAR_ARRAY, G_TYPE_UINT, G_TYPE_INVALID))
+#define DBUS_TYPE_G_IP6_ADDRESS             (dbus_g_type_get_struct ("GValueArray", DBUS_TYPE_G_UCHAR_ARRAY, G_TYPE_UINT, DBUS_TYPE_G_UCHAR_ARRAY, G_TYPE_INVALID))
 #define DBUS_TYPE_G_ARRAY_OF_IP6_ADDRESS    (dbus_g_type_get_collection ("GPtrArray", DBUS_TYPE_G_IP6_ADDRESS))
 #define DBUS_TYPE_G_IP6_ROUTE               (dbus_g_type_get_struct ("GValueArray", DBUS_TYPE_G_UCHAR_ARRAY, G_TYPE_UINT, DBUS_TYPE_G_UCHAR_ARRAY, G_TYPE_UINT, G_TYPE_INVALID))
 #define DBUS_TYPE_G_ARRAY_OF_IP6_ROUTE      (dbus_g_type_get_collection ("GPtrArray", DBUS_TYPE_G_IP6_ROUTE))
diff --git a/libnm-util/Makefile.am b/libnm-util/Makefile.am
index 8f6a0cc95d..bb4736f45b 100644
--- a/libnm-util/Makefile.am
+++ b/libnm-util/Makefile.am
@@ -59,7 +59,7 @@ libnm_util_la_SOURCES=			\
 libnm_util_la_LIBADD = $(GLIB_LIBS) $(DBUS_LIBS) $(UUID_LIBS)
 
 libnm_util_la_LDFLAGS = -Wl,--version-script=$(srcdir)/libnm-util.ver \
-	-version-info "4:2:3"
+	-version-info "4:3:3"
 
 if WITH_GNUTLS
 libnm_util_la_SOURCES += crypto_gnutls.c
diff --git a/libnm-util/libnm-util.ver b/libnm-util/libnm-util.ver
index 44d9ac5aec..1c8446ba2e 100644
--- a/libnm-util/libnm-util.ver
+++ b/libnm-util/libnm-util.ver
@@ -177,6 +177,8 @@ global:
 	nm_ip6_address_compare;
 	nm_ip6_address_get_address;
 	nm_ip6_address_set_address;
+	nm_ip6_address_get_gateway;
+	nm_ip6_address_set_gateway;
 	nm_ip6_address_get_prefix;
 	nm_ip6_address_set_prefix;
 	nm_ip6_route_new;
diff --git a/libnm-util/nm-setting-ip6-config.c b/libnm-util/nm-setting-ip6-config.c
index 3fbf1a2bc4..c383b2d270 100644
--- a/libnm-util/nm-setting-ip6-config.c
+++ b/libnm-util/nm-setting-ip6-config.c
@@ -797,10 +797,13 @@ nm_setting_ip6_config_class_init (NMSettingIP6ConfigClass *setting_class)
 
 }
 
+/********************************************************************/
+
 struct NMIP6Address {
 	guint32 refcount;
 	struct in6_addr address;
 	guint32 prefix;
+	struct in6_addr gateway;
 };
 
 NMIP6Address *
@@ -902,6 +905,27 @@ nm_ip6_address_set_prefix (NMIP6Address *address, guint32 prefix)
 	address->prefix = prefix;
 }
 
+const struct in6_addr *
+nm_ip6_address_get_gateway (NMIP6Address *address)
+{
+	g_return_val_if_fail (address != NULL, 0);
+	g_return_val_if_fail (address->refcount > 0, 0);
+
+	return &address->gateway;
+}
+
+void
+nm_ip6_address_set_gateway (NMIP6Address *address, const struct in6_addr *gw)
+{
+	g_return_if_fail (address != NULL);
+	g_return_if_fail (address->refcount > 0);
+	g_return_if_fail (gw != NULL);
+
+	memcpy (&address->gateway, gw, sizeof (struct in6_addr));
+}
+
+/********************************************************************/
+
 struct NMIP6Route {
 	guint32 refcount;
 
diff --git a/libnm-util/nm-setting-ip6-config.h b/libnm-util/nm-setting-ip6-config.h
index b089679e4e..78617c4547 100644
--- a/libnm-util/nm-setting-ip6-config.h
+++ b/libnm-util/nm-setting-ip6-config.h
@@ -88,6 +88,10 @@ guint32                nm_ip6_address_get_prefix  (NMIP6Address *address);
 void                   nm_ip6_address_set_prefix  (NMIP6Address *address,
                                                    guint32 prefix);
 
+const struct in6_addr *nm_ip6_address_get_gateway (NMIP6Address *address);
+void                   nm_ip6_address_set_gateway (NMIP6Address *address,
+                                                   const struct in6_addr *gw);
+
 typedef struct NMIP6Route NMIP6Route;
 
 NMIP6Route *           nm_ip6_route_new          (void);
diff --git a/libnm-util/nm-utils.c b/libnm-util/nm-utils.c
index 5ca3014d79..405288d361 100644
--- a/libnm-util/nm-utils.c
+++ b/libnm-util/nm-utils.c
@@ -1459,8 +1459,8 @@ nm_utils_ip4_get_default_prefix (guint32 ip)
  * @value: gvalue containing a GPtrArray of GValueArrays of (GArray of guchars) and guint32
  *
  * Utility function to convert a #GPtrArray of #GValueArrays of (#GArray of guchars) and guint32
- * representing a list of NetworkManager IPv6 addresses (which is a pair of address
- * and prefix), into a GSList of #NMIP6Address objects.  The specific format of
+ * representing a list of NetworkManager IPv6 addresses (which is a tuple of address,
+ * prefix, and gateway), into a GSList of #NMIP6Address objects.  The specific format of
  * this serialization is not guaranteed to be stable and the #GValueArray may be
  * extended in the future.
  *
@@ -1479,16 +1479,28 @@ nm_utils_ip6_addresses_from_gvalue (const GValue *value)
 		GValueArray *elements = (GValueArray *) g_ptr_array_index (addresses, i);
 		GValue *tmp;
 		GByteArray *ba_addr;
+		GByteArray *ba_gw = NULL;
 		NMIP6Address *addr;
 		guint32 prefix;
 
-		if (   (elements->n_values != 2)
-		    || (G_VALUE_TYPE (g_value_array_get_nth (elements, 0)) != DBUS_TYPE_G_UCHAR_ARRAY)
+		if (elements->n_values < 2 || elements->n_values > 3) {
+			nm_warning ("%s: ignoring invalid IP6 address structure", __func__);
+			continue;
+		}
+
+		if (   (G_VALUE_TYPE (g_value_array_get_nth (elements, 0)) != DBUS_TYPE_G_UCHAR_ARRAY)
 		    || (G_VALUE_TYPE (g_value_array_get_nth (elements, 1)) != G_TYPE_UINT)) {
 			nm_warning ("%s: ignoring invalid IP6 address structure", __func__);
 			continue;
 		}
 
+		/* Check optional 3rd element (gateway) */
+		if (   elements->n_values == 3
+		    && (G_VALUE_TYPE (g_value_array_get_nth (elements, 2)) != DBUS_TYPE_G_UCHAR_ARRAY)) {
+			nm_warning ("%s: ignoring invalid IP6 address structure", __func__);
+			continue;
+		}
+
 		tmp = g_value_array_get_nth (elements, 0);
 		ba_addr = g_value_get_boxed (tmp);
 		if (ba_addr->len != 16) {
@@ -1505,9 +1517,22 @@ nm_utils_ip6_addresses_from_gvalue (const GValue *value)
 			continue;
 		}
 
+		if (elements->n_values == 3) {
+			tmp = g_value_array_get_nth (elements, 2);
+			ba_gw = g_value_get_boxed (tmp);
+			if (ba_gw->len != 16) {
+				nm_warning ("%s: ignoring invalid IP6 gateway address of length %d",
+				            __func__, ba_gw->len);
+				continue;
+			}
+		}
+
 		addr = nm_ip6_address_new ();
 		nm_ip6_address_set_prefix (addr, prefix);
 		nm_ip6_address_set_address (addr, (const struct in6_addr *) ba_addr->data);
+		if (ba_gw)
+			nm_ip6_address_set_gateway (addr, (const struct in6_addr *) ba_gw->data);
+
 		list = g_slist_prepend (list, addr);
 	}
 
@@ -1522,10 +1547,10 @@ nm_utils_ip6_addresses_from_gvalue (const GValue *value)
  * g_value_unset().
  *
  * Utility function to convert a #GSList of #NMIP6Address objects into a
- * GPtrArray of GValueArrays of (GArray or guchars) and guint32 representing a list
- * of NetworkManager IPv6 addresses (which is a pair of address and prefix).
- * The specific format of this serialization is not guaranteed to be stable and may be
- * extended in the future.
+ * GPtrArray of GValueArrays representing a list of NetworkManager IPv6 addresses
+ * (which is a tuple of address, prefix, and gateway). The specific format of
+ * this serialization is not guaranteed to be stable and may be extended in the
+ * future.
  **/
 void
 nm_utils_ip6_addresses_to_gvalue (GSList *list, GValue *value)
@@ -1541,8 +1566,9 @@ nm_utils_ip6_addresses_to_gvalue (GSList *list, GValue *value)
 		GValue element = {0, };
 		GByteArray *ba;
 
-		array = g_value_array_new (2);
+		array = g_value_array_new (3);
 
+		/* IP address */
 		g_value_init (&element, DBUS_TYPE_G_UCHAR_ARRAY);
 		ba = g_byte_array_new ();
 		g_byte_array_append (ba, (guint8 *) nm_ip6_address_get_address (addr), 16);
@@ -1550,11 +1576,20 @@ nm_utils_ip6_addresses_to_gvalue (GSList *list, GValue *value)
 		g_value_array_append (array, &element);
 		g_value_unset (&element);
 
+		/* Prefix */
 		g_value_init (&element, G_TYPE_UINT);
 		g_value_set_uint (&element, nm_ip6_address_get_prefix (addr));
 		g_value_array_append (array, &element);
 		g_value_unset (&element);
 
+		/* Gateway */
+		g_value_init (&element, DBUS_TYPE_G_UCHAR_ARRAY);
+		ba = g_byte_array_new ();
+		g_byte_array_append (ba, (guint8 *) nm_ip6_address_get_gateway (addr), 16);
+		g_value_take_boxed (&element, ba);
+		g_value_array_append (array, &element);
+		g_value_unset (&element);
+
 		g_ptr_array_add (addresses, array);
 	}