We have a VPN connection using Cisco 2900 equpment.
It connects and passes data fine. However a few months ago we had some carrier issues and our normal egress traffic comes out of (i.e) Dallas.
When our internal dynamic redirect takes over from failed link. Our egress changes (same IP) to say (i.e.) Chicago.
When this happens the SA is hung and we have to manually reset the SA. While the lifetime SA settings are 1 hour. We know (and hear aabout it) within a few minutes when this happens as all the transactions sent fail. If we allow the hour to pass by, I believe the SA is recreated.
Okay, but what can I do to not have to manually intervene. .The other end is Cisco as well. And we are both running relatively new code.
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...