diff -ura a/src/devices/nm-device.c b/src/devices/nm-device.c
--- a/src/devices/nm-device.c	2017-06-05 19:02:45.628434326 -0700
+++ b/src/devices/nm-device.c	2017-06-05 19:11:08.018356248 -0700
@@ -7725,7 +7725,7 @@
 	nm_platform_process_events (nm_device_get_platform (self));
 	g_clear_object (&priv->ext_ip6_config_captured);
 	priv->ext_ip6_config_captured = nm_ip6_config_capture (nm_device_get_platform (self),
-	                                                       nm_device_get_ifindex (self),
+	                                                       nm_device_get_ip_ifindex (self),
 	                                                       FALSE,
 	                                                       NM_SETTING_IP6_CONFIG_PRIVACY_UNKNOWN);