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Re: [Openvpn-users] TCP over TCP Tunnel - Packet lost


  • Subject: Re: [Openvpn-users] TCP over TCP Tunnel - Packet lost
  • From: Alon Bar-Lev <alon.barlev@xxxxxxxxx>
  • Date: Sat, 15 Jul 2006 01:20:26 +0300

Michael Teske wrote:
> Hi!
> 
> I just found this message from Alon Bar-Lev in the archives:
> 
>> Recently I've found that my tunnel connection is very slow.
>> I am using TCP tunnel, and try to connect to my IMAP mail
>> server.
>> I think it used to work OK, until recently I don't know what exactly
>> happened... I don't remember when it stopped working.
> 
> [...]
> 
>> Client configuration
>> ===========================
>> openvpn-2.1_beta14
>> linux-2.6.17
> 
> 
> I have exactly the same problem, same configuration, but I found out
> what happened recently, at least at my system: I upgraded from kernel
> 2.6.16 to 2.6.17. For a test I booted with 2.6.16, and voila, everything
> worked again.
> To confirm I switched several times back and forth and it's always the
> same, 2.6.16 works and 2.6.17 not.
> 
> This is Fedora Core 5.
> 
> Does this ring a bell at somebody?

Wow!
Thanks for finding this.
I can confirm, 2.6.16 is much better!
I've tried almost all TCP congestion control of 2.6.17 and all don't perform
well...

Does anyone else has this problem?

Best Regards,
Alon Bar-Lev.

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