Guy's, can any one shed some light on this please?
I am trying to replace a gnat box with a cisco PIX but it would appear that the Pix can not perform what the Gnat Box does.
We have PAT mapping multiple different external/translate ports to the same server on the same original port. Cisco will not allow this? Why?
I can understand you not being able to map the same translate ports to multiple original ports as the device would not know which statement to choose. However the other way round should work as this is what we have configured on the Gnat box device. In theory it should work too?
Any help would be immenseley appreciated on this as I'm know wondering whether the PIX is not up to the job for this type of advanced PAT work.
Andrew, thanks your help on on investigating this matter.
I have found a solution in the form of Policy NAT and thought that you would be interested.
Policy NAT enables you to map otherwise overlapping conflicts through normal statements (please note that it will not allow you to overlap "translated ports" only original to the same server as it would be impossible for the device to route the traffic).
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...