OPT_TCPMSSFIXUP
optval(arg->bundle, OPT_TCPMSSFIXUP));
(1ull << OPT_SROUTES) | (1ull << OPT_TCPMSSFIXUP) |
"disable|enable", (const void *)OPT_TCPMSSFIXUP},
if (!Enabled(bundle, OPT_TCPMSSFIXUP))