I have a cisco 18xx router connecting to PIX (6.3). There are about 10 sites which connects to PIX on site A. What we need is if a link between any router and SiteA goes down it should dial the VPN link to the siteB with same PIX and other setup.
Basically we are looking for redundant VPN configuration on cisco router.
For redundant VPN configuration you can create a policy on your routers so that when the primary link goes down it will use the backup. Also configure the router which is dialled to forward the traffic to the PIX. Following link may help you
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...
[toc:faq]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 and UDP are I...