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From: Nikos Vassiliadis <nvass@teledomenet.gr>
To: freebsd-net@freebsd.org
Date: Thu, 6 Sep 2007 15:38:41 +0300
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Cc: Mihai Tanasescu <mihai@duras.ro>
Subject: Re: Freebsd MPD PPTP
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On Wednesday 05 September 2007 19:11, Mihai Tanasescu wrote:
> As far as I'm seeing it now, this only happens when 2 users try to be
> simultaneously connected.

Just an assumption...

Do by any chance these two clients are behind
the same NAT device? Something like this?

Client_a   Client_b
  |          |
  ------------
       |
      NAT
       |
       |
   internet
       |
       |
  pptp_server

You cannot have more than one GRE tunnel between
two IP adresses.

Nikos