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Passing VPN Through a Cisco Router

By Danerdo ·
I have a Cisco 2514 router that connects my organization to the internet via a T1 to the internet.

I am two hops away from this router at a remote location. I am researching placing a VPN behind the router behind the second router due to the fact I am at a remote location. The VPN server will be in the DMZ.

Is there a way to pass either port 1723 (PPTP)or port 1701 (L2TP)through the router that performs NAT? If so, what syntax should I enter in the router(s)?

My intentions are to setup a WIN2k RRAS server with one NIC, if possible. Any insight would be appreciated.

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Passing VPN Through a Cisco Router

by -Q-240248 In reply to Passing VPN Through a Cis ...

I take it there's a firewall between there and there? This is kinda important to know.

I don't think you can VPN to a destination that is NATted. I believe the VPN destination (W2K server?) has to have a public address. Then again, you also statethat the RRAS server is in the DMZ, so I assume that it is not firewalled and that it does have a public IP address? This would work without doing anything to the router.. I'm confused...

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Passing VPN Through a Cisco Router

by Danerdo In reply to Passing VPN Through a Cis ...

We do not have a firewall at all. Sorry. Should have mentioned that. I know enough about routers to be dangerous. However, my definition of a DMZ is not part of my network servers. It will though be behind the router with the intention of only having one NIC.

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Passing VPN Through a Cisco Router

by Danerdo In reply to Passing VPN Through a Cis ...

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