in_dtop
nat->in_dtop = nat->in_odport;
nat->in_dtop = nat->in_dpmin;
nat->in_dtop = 0;
nat->in_dtop = 0;
nat->in_dtop = $2.p1;
nat->in_dtop = $2.p2;
if (nat->in_dtop == 0)
nat->in_dtop = $2.p2;
if (nat->in_dtop == 0)
nat->in_dtop = nat->in_odport;
nat->in_dtop = $3.p2;
if (np->in_odport != np->in_dtop)
PRINTF("-%d", np->in_dtop);
(np->in_odport != np->in_dtop)) {
((np->in_dtop < dport) ||
((np->in_dtop < dport) ||
(np->in_odport != np->in_dtop)) {