diff --git a/src/core/nm-l3cfg.c b/src/core/nm-l3cfg.c
index 575840431b..93e92673df 100644
--- a/src/core/nm-l3cfg.c
+++ b/src/core/nm-l3cfg.c
@@ -2582,18 +2582,19 @@ _l3_commit_on_idle_cb(gpointer user_data)
     return G_SOURCE_REMOVE;
 }
 
-void
+gboolean
 nm_l3cfg_commit_on_idle_schedule(NML3Cfg *self)
 {
     nm_assert(NM_IS_L3CFG(self));
 
     if (self->priv.p->commit_on_idle_source)
-        return;
+        return FALSE;
 
     _LOGT("commit on idle (scheduled)");
     self->priv.p->commit_on_idle_source =
         nm_g_idle_source_new(G_PRIORITY_DEFAULT, _l3_commit_on_idle_cb, self, NULL);
     g_source_attach(self->priv.p->commit_on_idle_source, NULL);
+    return TRUE;
 }
 
 /*****************************************************************************/
@@ -3697,6 +3698,23 @@ _nm_l3cfg_unregister_ipv4ll(NML3Cfg *self)
 
 /*****************************************************************************/
 
+gboolean
+nm_l3cfg_is_ready(NML3Cfg *self)
+{
+    g_return_val_if_fail(NM_IS_L3CFG(self), FALSE);
+
+    if (self->priv.p->changed_configs_configs)
+        return FALSE;
+    if (self->priv.p->changed_configs_acd_state)
+        return FALSE;
+    if (self->priv.p->commit_on_idle_source)
+        return FALSE;
+
+    return TRUE;
+}
+
+/*****************************************************************************/
+
 static void
 set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
 {
diff --git a/src/core/nm-l3cfg.h b/src/core/nm-l3cfg.h
index 4efae0c54d..037f21784d 100644
--- a/src/core/nm-l3cfg.h
+++ b/src/core/nm-l3cfg.h
@@ -98,7 +98,8 @@ typedef enum {
 
     NM_L3_CONFIG_NOTIFY_TYPE_ACD_EVENT,
 
-    /* emitted at the end of nm_l3cfg_platform_commit(). */
+    /* emitted at the end of nm_l3cfg_platform_commit(). This signals also that
+     * nm_l3cfg_is_ready() might have switched to TRUE. */
     NM_L3_CONFIG_NOTIFY_TYPE_POST_COMMIT,
 
     /* NML3Cfg hooks to the NMPlatform signals for link, addresses and routes.
@@ -170,6 +171,8 @@ NML3Cfg *nm_l3cfg_new(NMNetns *netns, int ifindex);
 
 /*****************************************************************************/
 
+gboolean nm_l3cfg_is_ready(NML3Cfg *self);
+
 void _nm_l3cfg_notify_platform_change_on_idle(NML3Cfg *self, guint32 obj_type_flags);
 
 void _nm_l3cfg_notify_platform_change(NML3Cfg *                  self,
@@ -328,7 +331,7 @@ typedef enum _nm_packed {
 
 void nm_l3cfg_commit(NML3Cfg *self, NML3CfgCommitType commit_type);
 
-void nm_l3cfg_commit_on_idle_schedule(NML3Cfg *self);
+gboolean nm_l3cfg_commit_on_idle_schedule(NML3Cfg *self);
 
 /*****************************************************************************/