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02.20.2008 at 06:19AM PST, ID: 23177575
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9.3

Dual IPSec Tunnels and GRE routing

Asked by jlazanowski in IPSec Security Protocol, Network Security

Tags: , ,

I'm not sure that this is even possible, but want to try and get some input.

I have a centeral site that runs Citrix servers and 12 remotes that connect to this site connected via IPSec tunnles.

Our host site has two connections, one that we use to handle our tunnels the other as our Internet link.

For backup purposes, I would like to try and create a tunnel on each network and then use GRE to route accross this, my thought process being that
   a.) They're somewhat load balanced as different ISP's are at different sites.
   b.) If one link goes down at the host, the end user never sees a disconnect.

Currently our network looks a bit like this.

(Remote Site) PIX(501) ---- Internet --
(Host Site)  BorderRouter A -- PIX - Core router
                   BorderRouter B  ---'


The tunnles terminate at the PIX itself, so I have a feeling this isn't going to work, setting up two IPSEC tunnles on the same device to the same network, seems like it wouldn't be allowed.

Any thoughts, suggestions to add redundancy here?

Thanks

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About this solution

Zones: IPSec Security Protocol, Network Security
Tags: Cisco, PIX, 515
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Solution Provided By: lrmoore
Participating Experts: 1
Solution Grade: A
 
 
 
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