Re: [Users] Freeswan + NAT-T + windows 95/98 clients

From: Sam Sgro (sam_at_freeswan.org)
Date: Sat Dec 07 2002 - 01:58:03 CET


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On Fri, 6 Dec 2002, Fonz wrote:

> I got a linuxbox with static internet ip and freeswan (most recent
> version). Microsoft released IPSec software for win95/98 clients. I also
> run winXP. I once had an internet ip on my client, and was able to
> establish an IPSec connection (but no L2TP..) using a secret passphrase.
> Now I am behind a NAT modem, and am not even able to establish the SA.
>
> I want to be able to let the windows clients from behind NAT work, and
> roadwarriors with internet ips.

If you want to use Nat-Traversal, you'll have to run Windows clients which
support this; the only one I'm aware of is SSH Sentintel.
 
> Do I have to do anything to enable NAT-T or does it automatically detect
> it from the fact that ESP is UDP encapsulated?

I believe there is one simply setting in SFS's ipsec.conf to enable NAT-T.

- --
Sam Sgro
sam_at_freeswan.org

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