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