From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: BSD 4.2 style TCP keepalives Date: Fri, 08 Jan 2010 13:21:07 -0800 (PST) Message-ID: <20100108.132107.38069748.davem@davemloft.net> References: <20100105.163911.10233438.davem@davemloft.net> <20100108124033.GA28782@hmsreliant.think-freely.org> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, ilpo.jarvinen@helsinki.fi To: nhorman@tuxdriver.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:52168 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754086Ab0AHVU7 (ORCPT ); Fri, 8 Jan 2010 16:20:59 -0500 In-Reply-To: <20100108124033.GA28782@hmsreliant.think-freely.org> Sender: netdev-owner@vger.kernel.org List-ID: From: Neil Horman Date: Fri, 8 Jan 2010 07:40:33 -0500 > Dave, sorry about this, but it looks like we can scrap this, I just > looked at the initial tcpdump this was reported in, and apparently > w2k doesn't compute the checksum properly on these old style > keepalives. Thanks for the update. Nothing to be sorry about, this is actually a relief and we learned a lot about keepalives and zero-window probes in the process :-)