--- network-manager-0.9.4.0/src/ip6-manager/nm-ip6-manager.c	2012-08-18 20:50:11.000000000 -0400
+++ network-manager-0.9.4.0.new/src/ip6-manager/nm-ip6-manager.c	2012-08-18 20:47:09.095883959 -0400
@@ -796,6 +796,12 @@
 		return NULL;
 	}
 
+	if (rtnl_route_get_flags(rtnlroute) & RTM_F_CLONED) {
+		nm_log_dbg (LOGD_IP6, "ignoring route cache entry");
+		rtnl_route_put (rtnlroute);
+		return NULL;
+	}
+
 	old_size = nl_cache_nitems (priv->route_cache);
 	nl_cache_include (priv->route_cache, (struct nl_object *)rtnlroute, NULL, NULL);
 	rtnl_route_put (rtnlroute);