vat_json_object_add_ip4 (node, "src_address", ip4);
clib_memcpy (&ip4, &mp->dst_address, sizeof (ip4));
vat_json_object_add_ip4 (node, "dst_address", ip4);
vat_json_object_add_ip4 (node, "src_address", ip4);
clib_memcpy (&ip4, &mp->dst_address, sizeof (ip4));
vat_json_object_add_ip4 (node, "dst_address", ip4);