diff --git a/src/devices/nm-device.c b/src/devices/nm-device.c
index abcff229b..e649d267f 100644
--- a/src/devices/nm-device.c
+++ b/src/devices/nm-device.c
@@ -7694,9 +7694,13 @@ clear_config:
 static void
 dhcp4_dad_cb (NMDevice *self, NMIP4Config **configs, gboolean success)
 {
-	if (success)
+	NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE (self);
+
+	if (success) {
+		nm_dhcp_client_accept (priv->dhcp4.client, NULL);
 		nm_device_activate_schedule_ip_config_result (self, AF_INET, NM_IP_CONFIG_CAST (configs[1]));
-	else {
+	} else {
+		nm_dhcp_client_decline (priv->dhcp4.client, "Address conflict detected", NULL);
 		nm_device_ip_method_failed (self, AF_INET,
 		                            NM_DEVICE_STATE_REASON_IP_ADDRESS_DUPLICATE);
 	}
diff --git a/src/dhcp/nm-dhcp-client.c b/src/dhcp/nm-dhcp-client.c
index 6c95d5790..4dca4750e 100644
--- a/src/dhcp/nm-dhcp-client.c
+++ b/src/dhcp/nm-dhcp-client.c
@@ -530,6 +530,36 @@ nm_dhcp_client_start_ip4 (NMDhcpClient *self,
 	                                                   error);
 }
 
+gboolean
+nm_dhcp_client_accept (NMDhcpClient *self,
+                       GError **error)
+{
+	g_return_val_if_fail (NM_IS_DHCP_CLIENT (self), FALSE);
+
+	if (NM_DHCP_CLIENT_GET_CLASS (self)->accept) {
+		return NM_DHCP_CLIENT_GET_CLASS (self)->accept (self,
+		                                                error);
+	}
+
+	return TRUE;
+}
+
+gboolean
+nm_dhcp_client_decline (NMDhcpClient *self,
+                        const char *error_message,
+                        GError **error)
+{
+	g_return_val_if_fail (NM_IS_DHCP_CLIENT (self), FALSE);
+
+	if (NM_DHCP_CLIENT_GET_CLASS (self)->decline) {
+		return NM_DHCP_CLIENT_GET_CLASS (self)->decline (self,
+		                                                 error_message,
+		                                                 error);
+	}
+
+	return TRUE;
+}
+
 static GBytes *
 get_duid (NMDhcpClient *self)
 {
diff --git a/src/dhcp/nm-dhcp-client.h b/src/dhcp/nm-dhcp-client.h
index 1a8ccaba2..33030a4f2 100644
--- a/src/dhcp/nm-dhcp-client.h
+++ b/src/dhcp/nm-dhcp-client.h
@@ -82,6 +82,13 @@ typedef struct {
 	                           const char *last_ip4_address,
 	                           GError **error);
 
+	gboolean (*accept)        (NMDhcpClient *self,
+	                           GError **error);
+
+	gboolean (*decline)       (NMDhcpClient *self,
+	                           const char *error_message,
+	                           GError **error);
+
 	gboolean (*ip6_start)     (NMDhcpClient *self,
 	                           const char *anycast_addr,
 	                           const struct in6_addr *ll_addr,
@@ -155,6 +162,13 @@ gboolean nm_dhcp_client_start_ip6 (NMDhcpClient *self,
                                    guint needed_prefixes,
                                    GError **error);
 
+gboolean nm_dhcp_client_accept (NMDhcpClient *self,
+                                GError **error);
+
+gboolean nm_dhcp_client_decline (NMDhcpClient *self,
+                                 const char *error_message,
+                                 GError **error);
+
 void nm_dhcp_client_stop (NMDhcpClient *self, gboolean release);
 
 /* Backend helpers for subclasses */