I need to validate something or know of any good configuration to do this.
I have a Cisco 1800 Series router that has a T1 module (primary) and a DSL connection (Secondary) connected to one of the ethernet ports.
We have a VPN tunnel established with one site. I want the ability that if the T1 fails and fails over to the DSL the VPN will fail over to. I know there be some delay in order for the VPN to be reestablished.
What would be the best way to do this.
Any config examples and related URLs would be great.
Here is what my came up with and thought there may be another way, better way to do this:
Thanks for the response Istvan. I actually didn't write-up the config correctly.
What I meant to say was the main site has two Internet connections terminating to the same router. The remote site only has one connection. The VPN would need to be established through the Primary and if the Primary fails reestablished through the secondary link. It seems DMVPN would be better solution and require some hardware changes.
That solution you mentioned would work, but the issue is I can only not active default gateway on the router thus only one VPN tunnel would exist unless I implement a Dual-Tier/Cloud DMVPN network using two routers which seems to be the better option.
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...