This allows you to build dynamic tunnels between offices without hair-pin routing via the Hub. After the traffic stops between site to site it will tear the tunnel back down based on the timers you set-up. This is accomplished via NHRP, with is a table that holds are next hops of all te tunnels. So for instance site A wants to talk to site F. Site A will send a look-up to the Hub asking for this info. The hub will respond and site A and F will negotiate a tunnel.
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...