NAT_PORTS_CHANGED
iph1->natt_flags |= (NAT_PORTS_CHANGED);
! (iph1->natt_flags & NAT_PORTS_CHANGED) &&
iph1->natt_flags |= NAT_PORTS_CHANGED | NAT_ADD_NON_ESP_MARKER;
iph1->natt_flags |= NAT_PORTS_CHANGED | NAT_ADD_NON_ESP_MARKER;