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Date:	Fri, 15 Aug 2008 18:35:11 -0300
From:	Dâniel Fraga <>
To:	"Ilpo Järvinen" <>
Cc:	David Miller <>,,, Netdev <>,
	Patrick Hardy <>,,,
Subject: Re: [PATCH] tcp FRTO: in-order-only "TCP proxy" fragility

On Fri, 15 Aug 2008 10:06:39 +0300 (EEST)
"Ilpo Järvinen" <> wrote:

> I would be better to have tcpdump running at least a bit back (2-3 windows 
> back is long enough for me), but obviously that might not be possible 
> option because it occurs so rarely. ...It should be possible to have 
> tcpdump restarted once in a while to avoid a one huge log if you'd just 
> keep running tcpdump from beginning.


> What do you mean by "come back alive"...? ...In eth0 log I found this 

	I mean, it isn't stalled anymore. When it stalls, fetchnews
stops and stay stalled forever. When it come back alive, it resumes
(but it will only do that if I do something to restore the connection).

> connection >, the ip matches with 
> abusar's. But I'm not sure if the connection in the tunnel is the 
> interesting one, since it's going to/from port 119 but the ip addresses 
> ( and don't tell anything to me, I guess you 
> know their meaning (ie., if is the one with which the 
> connection stalls)? ...You're probably right that this wasn't very useful 
> log, the longest "stall" I find is only 1.111328 seconds long (and it 
> might be due to some processing that is made by

	Ok: is my local VPN IP (tun1) is the remote VPN IP (on the server) is my local IP (eth0) is the server's IP

	Should I use tcpdump on the server too or is it sufficient to
use on my client machine?

	Thank you very much again.

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