int setup_router_interface(struct interface *iface, bool enable)
{
+ if (!fp_route || router_event.uloop.fd < 0)
+ return -1;
+
struct ipv6_mreq all_nodes = {ALL_IPV6_NODES, iface->ifindex};
struct ipv6_mreq all_routers = {ALL_IPV6_ROUTERS, iface->ifindex};