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Cisco PIX VPN with NAT

I have a PIX at a Branch site with a Internal network of 10.0.1.0 255.255.255.0 which I NAT to the Outside Interface public IP address for Internet connectivity. I need to create a site to site VPN with the PIX at my head office but I need to NAT the 10.0.1.0 network to 10.1.1.0 over the IPSEC tunnel so I can differentiate the networks at my head office. I have a frame relay connection internal to my head office which I already route the 10.0.1.0 network, so for a backup I'm looking at using the VPN but I need to be able to see my brangh network as a different identity. Is it possible ?

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Re: Cisco PIX VPN with NAT

From your post if I understand you correctly, you are asking about overlapping subnets and you are looking to create a L2L IPSec tunnel.

If the above is the case then have a look here:

http://www.cisco.com/en/US/tech/tk583/tk372/technologies_configuration_example09186a00800949f1.shtml

The above example is for an IPSec tunnel between PIX and 3K Concentrator with overlapping subnets but the principle is the same for a PIX-to-PIX setup.

Let me know if the above helps or require further help.

Regards / Jay

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