uloop_timeout_cancel(&iface->timer_rs);
iface->timer_rs.cb = NULL;
+ if (iface->ifindex <= 0)
+ return -1;
+
setsockopt(router_event.uloop.fd, IPPROTO_IPV6, IPV6_DROP_MEMBERSHIP,
&all_nodes, sizeof(all_nodes));
setsockopt(router_event.uloop.fd, IPPROTO_IPV6, IPV6_DROP_MEMBERSHIP,