Ive recently purchased a 2921 and im using it at a site about 100 miles from my location. It replaced an old 5505 that had gone bad.
On the ASA I had an IPSEC site to site set up as well as an IPSEC remote access profile that allowed my various devices to connect (OSX, iPhones, Androids, etc) natively. This was all done through NAT.
When I got the new 2921 installed, I was able to get the site to site going no problem on the outside interface, but I am not able to join an IPSEC connection onto that interface. I am sure that the verbage has just gotten me confused here.
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...