IPV6_IFACE_ADDR_SEC
.expected_src = IPV6_IFACE_ADDR_SEC,
SYS(fail, "ip addr add %s/64 dev veth1 nodad", IPV6_IFACE_ADDR_SEC);
SYS(fail, "ip route add %s/128 dev veth1 src %s", IPV6_ADDR_DST, IPV6_IFACE_ADDR_SEC);