SRV_OFFER_ETRN
if (bitset(SRV_OFFER_ETRN, features))
if (!bitset(SRV_OFFER_ETRN, features) || UseMSP ||
{ 'E', SRV_OFFER_ETRN },
bitnset(D_NOETRN, d_flags)) ? SRV_NONE : SRV_OFFER_ETRN)