From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxime Bizon Subject: Re: [PATCH -next, V3 0/2] net: force refragmentation for DF reassembed skbs Date: Tue, 26 May 2015 11:57:25 +0200 Message-ID: <1432634245.17881.57.camel@sakura.staff.proxad.net> References: <1432305171-21932-1-git-send-email-fw@strlen.de> <20150522.150310.2248217318352290500.davem@davemloft.net> <20150522192651.GA3629@breakpoint.cc> Reply-To: mbizon@freebox.fr Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: David Miller , netdev@vger.kernel.org, hannes@stressinduktion.org To: Florian Westphal Return-path: Received: from [212.27.33.1] ([212.27.33.1]:50406 "EHLO ns.iliad.fr" rhost-flags-FAIL-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752603AbbEZKIW (ORCPT ); Tue, 26 May 2015 06:08:22 -0400 In-Reply-To: <20150522192651.GA3629@breakpoint.cc> Sender: netdev-owner@vger.kernel.org List-ID: On Fri, 2015-05-22 at 21:26 +0200, Florian Westphal wrote: Hello, > But it does happen, see e.g. following bug report: > http://marc.info/?l=linux-netdev&m=139870308431986&w=2 > > Maxime, do you recall what type of traffic generates > the DF-fragments you reported? Yep We are an ISP and provide our own home gateway to the subscribers, which ends up routing traffic of a large range of end user devices. In that case, the frag+DF traffic was seen in an exchange between a femtocell and a femto GW during the IPsec IKE exchange, more precisely on the IKE_AUTH message sent from the femto GW. You can contact me privately if you need more details. -- Maxime