Yes - our company has deployed about a dozen 837's with the c837-k9o3y6-mz.122-13.YN image and about 1/2 have had some very weird problems such as high cpu utilisation, SegV exceptions and VPN tunnels not coming up. The fix has been upgrading the IOS to c837-k9o3y6-mz.122-13.ZH.bin.
I haven't logged a TAC case yet but they must be aware of issues.
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...