Re: RRAS and Preshared Key

From: Ben (Ben_at_discussions.microsoft.com)
Date: 07/24/04 

Date: Fri, 23 Jul 2004 18:56:01 -0700

Steve:

Thanks. I thought it was something like that. Read a few articles on it just wanted to make sure. If I had lets say my server assigned with a public IP address and my client had a Nat address would this situation work?

"Steven L Umbach" wrote:

> L2tp will not work over a NAT router due to the way that NAT mangles IP headers and
> ipsec thinks that there has been a compromise to the packet. You will have to use
> pptp in your situation. --- Steve
>
> "Ben" <Ben@discussions.microsoft.com> wrote in message
> news:D9B2B06B-9E4A-4538-BF93-27A14B27FADE@microsoft.com...
> > Can anyone give me a hand on this? I set up RRAS in a test environment and I'm
> trying to connect to my server on the same LAN. I set up a new IPSEC policy on both
> my client and my server to use the same preshared Key. Everytime I attempt to
> connect via vpn I only get a pptp connection even when I'm trying to connect by
> IPSEC/L2TP? This is a standalone machine (ie not part of a domain). This is a
> Windows 2k server with windows 2k pro client. The only way I found to enable a
> preshared key on the client and server was by setting up a IPSEC policy. Is there
> anything I am forgetting or doing incorrectly. I attempted to use CA in earlier
> temps but still go the same error. 792. I started over and tried to use a preshared
> key and do it this way with no avail. Same error message. This is pretty simple
> labe set up. Using a Linksy router with 8 port switch. I'm starting to think it
> might be the router/firewall not allowing IPSEC/L2TP authentication. Any
> Suggestions. Thanks.
>
>
>

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