Re: IPSec with HSRP failover - have to clear session to work
I got it to work when I enabled periodic DPD. When I turned periodic DPD off it was still working...strange, but it seems DPD is the key and it makes sense. When the encrypted DPD keepalives aren't returned, the SA will eventually be deleted. Then any new traffic will cause new SAs to be established.
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...