RE: [Openvpn-users] Re: Tunnel over GPRS fails

["Matt Burleigh" <matt.burleigh@xxxxxxxxxxxxxxxx>]

I have 15+ users using OpenVPN 2.0_beta10(server) TCP and UDP tunnels
over GPRS/EDGE for 8+ months now daily. We have experienced no
significant problems. 

For the past two months I have two users using Verizon's 1xRTT/EVDO as
well with no issues. These guys love the speed too! 

Users are connecting to Microsoft Exchange server using MAPI, file
server, SharePoint, printing to printers, various custom TCP
applications and using VoIP SoftPhones(UDP tunnel only). 

Users are mostly equipped with Sony Ericsson GC82 and GC82 GPRS/EDGE
cards. A few users have the Sierra Wireless AirCard 750 and 755s. The
Verizon users are using the Sierra Wireless 5220 EVDO card. 

We're using 2048 bit keys so the initial connection can take over a
minute but once its connected it works perfectly. Some users report that
Outlook will complain occasionally about losing connection with the
server but after a few seconds it will restore its connection and
continue on.

I've not had the time to upgrade to the 2.0 release but why fix it if
ain't broke. ;-)

--
Matt Burleigh
Senior Systems Engineer
Enterprise Integration, Inc.
eiisolutions.com
703-236-0790

-----Original Message-----
From: openvpn-users-admin@xxxxxxxxxxxxxxxxxxxxx
[mailto:openvpn-users-admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Erich
Titl
Sent: Tuesday, May 31, 2005 3:17 AM
To: Charles Duffy
Cc: openvpn-users@xxxxxxxxxxxxxxxxxxxxx
Subject: Re: [Openvpn-users] Re: Tunnel over GPRS fails

Charles

Charles Duffy wrote:

>Does your routing issue go away if you configure the tap interface
>manually (ip-win32 manual + using the properties window of the tap
device)
>or via netsh (ip-win32 netsh)?
>
>If the routing issue is solved, but other things are still wonky, a few
>add'l questions that might be relevant when using GPRS -- does TCP mode
>work? In UDP mode, what does mtu-test determine?
>  
>
Will try to get my hands on that particular HW again to do more testing.

At the moment it (gut)feels like a conflict between the tap driver and 
the driver for that particular card (Option Fusion)

Thanks

Erich

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