Thanks for getting back to me. I did change the The idle time out value to not to expire a few weeks ago,unfortyantly that didn't do it. However, I did capture some traffic and sent it to Cisco TAC for futhher evaluation, they came back telling me that there is a TCP connection that negotiates an MSS of 1460, which is pretty close to 1500 the maximum segment size. To reslove this I need to add some extra-bytes to the header due to the IPSec encryption, the packet might exceed the 1500 byte size and fragmentation could occur.
I added the following commands. So far so good. I still need to have some more users test it for at least another week to get more consistent results.
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...