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IPSec tunnel backup root

Hi all,

I have a customer who has IPSec tunnels running between the HQ and 5

branches. The primary connection is Frame-Relay and they want to back

it up by ISDN BRI.

At the HQ the ISPsec gateway is PIX, while the branches run 2610 routers.

So I'm thinking of placing a router in front of the PIX and implement GRE tunnels with dial-watch and routing to bring up the ISDN line in case of failure, and pass IPSec traffic through GRE.

the following will sketch what I'm trying to achieve.

_____________________IP SEC Tunnel __ __ ________

------- ----------- ____GRE____-----------------

|HQ PIX|-----------|HQ router |------------------|branch router|

-------- ------------ ---------------

I have to run IPSec in transport mode.

My question is, will this scenario work with PIX? Or should I go for

another solution

thanx for any help


Re: IPSec tunnel backup root

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If anyone else in the forum has some advice, please reply to this thread.

Thank you for posting.

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