I updated my S650 appliances last week to v6 and I have been having problems with my NAT configuration ever since. This may not be tied to the update, but no other changes were made. I use NAT to port SSL traffic to my webmail server while port 25 should still pass to my email appliance in my DMZ. Since the time of the update, my NAT does not work. My port 25 traffic will not pass to my email appliances unless I turn off the NAT to my webmail server (they both share the same outside IP address). I know there is still a great chance that this is not related to the v6 update, but I would like to know if anyone else has reported similar issues.
I was able to get my network operational again. After the update, my WCCP configuration stopped working on my router until I disabled it and then enabled it once again on my router (a rebbot did not fix it). Also, somehow my DNS became corrupt on my AD server which caused issues with my NAT. I just wanted to get this information out in case anyone else has similar issues they can work through it.
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...