Re: [Users] OE behind a win2k gateway

From: Sam Sgro (sam_at_freeswan.org)
Date: Tue Jan 14 2003 - 06:55:34 CET


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On Mon, 13 Jan 2003, Guillaume Cornet wrote:

> Hello,
>
> I've been looking for doc for a while but it seems my problem is not so frequently raised.
>
> linux box (freeswan 1.98b) windows 2000 box (NAT) INTERNET
> 192.168.0.3 ----------------------- 192.168.0.1
> dynamic IP address ---------
>
> I want to do opportunistic encryption (e.g. to oetest.freeswan.org)
> through this damned windoze NATing box. I know a linux gateway would be
> easier but my "sysadmin" does not want one because he "prefers windows"
> (sic). The win2k gateway does not filter anything, which should make
> things easier. Any configuration advice is welcome.

*sigh* He enjoys the constant barrage of security vulnerabilities, as well as
having the option of an inexpensive VPN?

Unfortunately, this configuration is not currently supported. If it were
possible, you would be doing initiator-only OE.

In my mind, I don't think this setup is inconceivable. Would you like to
engage in a test with me?

Let's assume your win2k box supports IPSec Passthrough. I'm going to set up a
special record on my own gateway which may allow you to negotiate an
initiator-only OE connection. Basically, I'm going to create a special OE
connection with a "rightsubnet=192.168.0.3/32" entry - this would mimic the
necessary setup to get a connection working through NAT.

Anyhow, attempt to ping "rook.crowgirl.com".

- --
Sam Sgro
sam_at_freeswan.org

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