Thread (105 messages) 105 messages, 7 authors, 2008-09-22

Re: [PATCH] tcp FRTO: in-order-only "TCP proxy" fragility workaround

From: Dâniel Fraga <hidden>
Date: 2008-08-15 21:59:40
Also in: netfilter-devel

Possibly related (same subject, not in this thread)

On Fri, 15 Aug 2008 10:06:39 +0300 (EEST)
"Ilpo Järvinen" [off-list ref] 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.
	Ok.
What do you mean by "come back alive"...? ...In eth0 log I found this 
connection 189.38.18.122.995 > 192.168.0.2.35477, 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 
(10.195.195.2 and 10.195.195.1) don't tell anything to me, I guess you 
know their meaning (ie., if 10.195.195.2 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 10.195.195.2).
	By "come back alive" I mean when the connection isn't stalled
anymore.

189.38.18.122 -> server

10.195.195.1 -> my local VPN ip (tun1)

10.195.195.2 -> remote VPN ip (on the server)

192.168.0.2 -> my local ip (eth0)

	Should I run tcpdump on the server too, or is it sufficient to
dump just on my client machine?

	Thank you very much again.

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