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Re: [Openvpn-users] openvpn & samba


  • Subject: Re: [Openvpn-users] openvpn & samba
  • From: Jason Maas <maasj@xxxxxx>
  • Date: Sat, 6 Sep 2003 09:31:05 -0400 (EDT)

Hello,

I'm new to the list but I've been using OpenVPN for a few months now.

On Sat, 6 Sep 2003, alex wrote:

>Has anyone had any luck getting a windows computer to connect to a linux
>samba share via openvpn?

I think I just solved this problem last night!  I was actually going to
write to the list today about it.

I saw the same behavior you saw, and also web page transfers would not
complete, and getting a large directory listing over SSH would hang the
SSH client, etc.  Ping and "small" ssh traffic worked just fine.

These symptoms should have clued me in right away, but it took me a while
to get it:  MTU problem!

I have setup routed OpenVPN tunnels between Linux gateways before, but
this was my first Windows <-> Linux tunnel.  I decided to use ethernet
bridging, and I tried to follow the Win32 instructions.  It turns out that
the key part I missed that seems to do the trick are the "tun-mtu" and
"tun-mtu-extra" settings that are mentioned in the "Example running a
routed VPN between Windows and Linux" section of the Win32 installation
notes.

Does it make sense that those settings would make a difference with a
bridged ethernet tunnel?  If so, those instructions should probably be
included again in the bridging section, or made more prominent in a global
section or something like that.

I'm using v1.5b7 on the Windows machines (one XP Home, and one XP Pro),
and v1.4.1 on the Linux machine (Debian package).  The ethernet bridging
is being done on the Linux machine.

Thanks so much for your hard work, James!  OpenVPN is a fantastic piece of
software that neatly ties together some other great software!  I'm very
impressed with your documentation too, you do a better job than a lot of
open source developers.  Keep up the great work!

-Jason


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