RTA_TABLE
snl_add_msg_attr_u32(&nw, RTA_TABLE, fib);
snl_add_msg_attr_u32(&nw, RTA_TABLE, r->rta_table);
snl_add_msg_attr_u32(&nw, RTA_TABLE, fib);
.nla_fibnum.nla_type = RTA_TABLE,
snl_add_msg_attr_u32(&nw, RTA_TABLE, fibnum);
snl_add_msg_attr_u32(&nw, RTA_TABLE, fibnum);