netdev - Re: TCP connection will hang in FIN_WAIT1 after closing if zero window is advertised

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Message-Id: <1410856661.1539893.168008809.76DF2C8C@webmail.messagingengine.com>
Date:	Tue, 16 Sep 2014 10:37:41 +0200
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Andrey Dmitrov <andrey.dmitrov@...etlabs.ru>,
	netdev@...r.kernel.org,
	"Alexandra N. Kossovsky" <Alexandra.Kossovsky@...etlabs.ru>,
	Konstantin Ushakov <kostik@...etlabs.ru>
Subject: Re: TCP connection will hang in FIN_WAIT1 after closing if zero window
 is advertised



On Tue, Sep 16, 2014, at 03:50, Eric Dumazet wrote:
> 
> Why ? If a TARPIT module always answer to zero window probes, these
> sessions would last forever.

The first paragraph from the original mail didn't read like it would
constantly answer to the zero win probes, but after looking at the
attack.lua source I come to the same conclusion.

Bye,
Hannes
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