I have been facing ipsec vpn tunnel issue on upgrading my pix 535 from 6.3(5) to 7x .I am having 20 odd site to site vpn tunnels configured on my pix. Problem is that all of sudden data stops transferring through tunnel. If I check the status of ipsec vpn tunnel by
sh crypto isakmp sa
sh crypto ipsec sa
sh crypto isakmp detail
,it shows me up and connected. Cisco recommended to check with ASA.I got ASA 5520 installed with ver 7.2(2). I observed same problem 3 times in 1 week. Has anybody else observed same issue. Need solution.
Re: IPSEC tunnel issue on Pix 7x and ASA 7.2(2) ver
They are still up. Some tunnels were intermittently up and one was up all the time of the 15. I have noticed that they can grow stale and I believe there is a command to fix that as well, I just don't remember what it is.
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...