struct ipv6_mreq all_nodes = {ALL_IPV6_NODES, iface->ifindex};
struct ipv6_mreq all_routers = {ALL_IPV6_ROUTERS, iface->ifindex};
struct ipv6_mreq all_nodes = {ALL_IPV6_NODES, iface->ifindex};
struct ipv6_mreq all_routers = {ALL_IPV6_ROUTERS, iface->ifindex};