Long ago I had the same problem.
You should check the XP client and it connection settings. I can't
remember the exact trick and I have no XP machine here to test it right
now, but there is some problems with multilink. You should disable
multilink on XP machine or you should enable it on both sides. The
problem is that I can't remember which of these 2 solutions worked with

Best regards,
Ivailo Tanusheff

-----Original Message-----
[mailto:[EMAIL PROTECTED]] On Behalf Of Scott Pilz
Sent: Monday, January 13, 2003 7:16 PM
Subject: MPD/VPN 

        I'm open to suggestions on this one. I have tried everything :(
I'm hoping that someone else ran into this problem and knows how to fix

        MPD/FREEBSD as a VPN server.

        Multiple clients (windows and unix).

Windows 98: Works great, connects, tiny performance drop in speed,

Windows 2000: Works just as well as Windows 98 if not better.

Windows XP: I can connect, ping through the VPN, even load tiny web
and telnet out - but anything large stalls completely.

I've tried multiple XP machines, they all do the same thing.

It is my understanding that this is a MTU issue - but I find it very
to believe that Microsoft products need configuration before they work,
such as a MTU change.

Heres mpd.conf for what it's worth (I've excluded the clients):

        set iface disable on-demand
        set iface enable proxy-arp
        set iface idle 86400
        set bundle disable multilink
        set link yes acfcomp protocomp
        set link disable pap
        set link enable chap
        set link keep-alive 10 60
        set ipcp yes vjcomp
        set ipcp dns
        set bundle enable compression
        set bundle enable crypt-reqd
        set ccp yes mppc
        set ccp yes mpp-e40
        set ccp yes mpp-e128
        set ccp yes mpp-stateless

        One other thing - I notice that the two clients that do work
Windows 98 or 2000 box) has a MTU of 1496 on the server:


        The ones that don't vary but are NOT 1496.

        Any input would be helpful at this point.

<bangs head into desk>


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  • MPD/VPN Scott Pilz
    • Ivailo Tanusheff

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