DL> Port/Overload NAT for IPv4 (NAT:P) has security benefits > in that it requires explicit configuration to allow for > inbound unsolicited transport connections (via port forwarding) > to 'inside' hosts. Perhaps you missed this statement from <http://www.ietf.org/internet-drafts/draft-mrw-behave-nat66-01.txt> NAT66 devices that comply with this specification MUST NOT perform port mapping. --Michael Dillon _______________________________________________ Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf