We have a VPN 3005 concentrator (ver 2.5) that will drop a tunnel due to inactivity. Not unusual until you consider the tunnel can only be re-established with a ping from the remote server...but not with a ping from the concentrator. There's another tunnel to another location that works fine. Both configurations are the same with the exception of the slist settings. In the active session list, the tunnel in question shows "Auth'ing" instead of listing a proper username.
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...