IPV4_IFACE_ADDR
SYS(fail, "ip addr add %s/24 dev veth1", IPV4_IFACE_ADDR);
ret = inet_pton(AF_INET, IPV4_IFACE_ADDR, ¶ms->ipv4_src);
.expected_src = IPV4_IFACE_ADDR,
SYS(fail, "ip addr add %s/8 dev lo", IPV4_IFACE_ADDR);
err = make_sockaddr(AF_INET, IPV4_IFACE_ADDR, UDP_TEST_PORT,