Hi, the system being configured is a point to point connection, outside of a larger network, so there is no DNS used at all. The pix has however got the default settings for domain. Should DNS matter here?
The network connected to the outside network is of a 'stub' topology.
A classic symptom of reverse dns issues, is when you try to FTP and you get funky results, such as:
You can ftp to the site, traverse directories, but not issue LS or GET commands. It normally means that the domain you are initiating the FTP from, has reverse DNS issues. A lot of FTP sites do a reverse lookup on clients that ftp to their site. It could also be an IDENT issue... The article has good info in it. See if there is a way to turn off reverse dns lookup on the ftp server.
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...