VPN from W2k behind NAT to private network behind Cisco1720
Can this be done?
We have a client whom we manage their networks. We've setup a VPN between 3 offices that are using Cisco 1720 routers. I want to be able to establish a vpn connection from my office to theirs, but I don't have a Cisco1720 router I have a linksys DSL/Router which has minimum configuration and is running NAT to give my internal network access to the internet.
Can I establish a VPN connection from my internal W2K computer to one of the Cisco1720 routers in my client's network?
I don't see how I can setup a tunnel from my internal address that has to go through NAT to the external address of the Cisco1720.
The linksys say's it has support for IPSEC passthrough but I'm not sure what this is.
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