uc = udp_connection_alloc (thread_index);
ip_copy (&uc->c_rmt_ip, &rmt->ip, rmt->is_ip4);
ip_copy (&uc->c_lcl_ip, &lcl_addr, rmt->is_ip4);
uc = udp_connection_alloc (thread_index);
ip_copy (&uc->c_rmt_ip, &rmt->ip, rmt->is_ip4);
ip_copy (&uc->c_lcl_ip, &lcl_addr, rmt->is_ip4);