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 From:  "Paul Dugas" <paul at dugas dot cc>
 To:  "m0n0wall Mailing List" <m0n0wall at lists dot m0n0 dot ch>
 Subject:  Re: [m0n0wall] PPTP MTU Problem
 Date:  Tue, 18 Apr 2006 09:24:42 -0400 (EDT)
Anybody want to take a crack at this?  Is there any additional info I
could provide?  Additional steps I should take before asking for help?

Beuler? ;)

On Sat, April 15, 2006 2:04 pm, Paul Dugas wrote:
> Did some more digging into my PPTP problems this morning.  I think I may
> have come up with something to go on.  Some background first...
>
> At home:
>   [laptop] <-> {home} <-> [m0n0-1.21] <-pppoe-> {ISP}
>
> At work:
>   {office} <-> [m0n0-1.2] <-> {dmz} <-> [netopia] <-pppoe-> {ISP}
>
>
> I'm using WinXP running in a VMWare session on my FC5 laptop.  I'm
> trying to connect a PPTP VPN connection from the WinXP virtual machine
> to the office network.  The virtual machine is setup to use a bridged
> network on the laptop so I am able to run Ethereal and capture the
> traffic.  A pcap file is attached.  It is the traffic between the
> virtual machine and the office m0n0 machine.
>
> I'm no PPTP expert but I think I'm seeing the WinXP initially request an
> MRU of 1400.  Then m0n0 responded with an offer of 1600 which was
> rejected.  m0n0 responded with another offer of 1500 which was also
> rejected.  This repeated a couple more times with 1500 then the WinXP
> machine gave up.
>
> So, am I reading this right?  If so, how do I tell the PPTP server on
> m0n0 to accept the lower MRU value?  I'm dying for a fix to this.  Any
> suggestions would be appreciated.
>
> Paul
> --
> Paul Dugas, Computer Engineer                Dugas Enterprises, LLC
> paul at dugas dot cc        phone: 404-932-1355     522 Black Canyon Park
> http://dugas.cc        fax: 866-751-6494     Canton, GA 30114 USA
> --
> On site at GDOT's W.Annex, 404-463-2860 x199
> --
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>


-- 
Paul Dugas, Computer Engineer           Dugas Enterprises, LLC
paul at dugas dot cc     phone: 404-932-1355   522 Black Canyon Park
http://dugas.cc     fax: 866-751-6494   Canton, GA 30114 USA
--
Onsite at GDOT W.Annex 404-463-2860 x199