IPV4_IFACE_ADDR_SEC
.expected_src = IPV4_IFACE_ADDR_SEC,
SYS(fail, "ip addr add %s/24 dev veth1", IPV4_IFACE_ADDR_SEC);
SYS(fail, "ip route add %s/32 dev veth1 src %s", IPV4_ADDR_DST, IPV4_IFACE_ADDR_SEC);