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Complex VPN Config - VPN to a network not on the VPN connected device (behind a second firewall)

ccfcfc asked
Last Modified: 2013-11-16
I have 6 internal 192.168 networks behind a firewall. I need VPN access to these networks but I can't make the firewall itself the VPN endpoint.

I have the following setup.

I have a VPN in place between my office (Cisco PIX506E) and a Cisco 2811 router. I then need to get from the router to the 192.168 networks behind a firewall which I don't directly manage.

+-------------------+                +-------------------+             +---------------------+                 +--------
| PIX506E            |                | 2811                 |             | Firewall              |                  +--------
|Ins |-------------|Ins    |-----------|Ins|--------------+--------
|Out    |                |Out   |              |Out     |                 +--------
+--------------------+               +-------------------+              +--------------------+                 +--------

I have ny VPN setup between two endpoints - and

What static route statements do I need now, and where do I need them, to ensure that I get from the network behind my PIx through to the 192.168.0-5.0/24 networks behind the firewall and back again ? I have tried a number of different configs and haven't yet been able to get this to work.

Also, in my crypto access lists for the traffic to be protected by the VPN, I assume I need to add an entry for the destination 192.168.0-5.0/24 networks, as well as entries for the inside networks on the PIX and 2811.

Any help would be greatly appreciated.

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