hdr.data_offset = 0;
clib_memcpy_fast (&hdr.rmt_ip, &at->rmt_ip, sizeof (ip46_address_t));
hdr.is_ip4 = at->is_ip4;
hdr.rmt_port = at->rmt_port;
clib_memcpy_fast (&hdr.lcl_ip, &at->lcl_ip, sizeof (ip46_address_t));
hdr.lcl_port = at->lcl_port;
hdr.data_offset = 0;
clib_memcpy_fast (&hdr.rmt_ip, &at->rmt_ip, sizeof (ip46_address_t));
hdr.is_ip4 = at->is_ip4;
hdr.rmt_port = at->rmt_port;
clib_memcpy_fast (&hdr.lcl_ip, &at->lcl_ip, sizeof (ip46_address_t));
hdr.lcl_port = at->lcl_port;