From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rick Jones Subject: Re: Was change to ip_push_pending_frames intended to break udp (more specifically, WCCP?) Date: Mon, 22 May 2006 11:48:45 -0700 Message-ID: <4472078D.8010706@hp.com> References: <20060520191153.GV3776@stingr.net> <20060520140434.2139c31b.akpm@osdl.org> <1148322152.15322.299.camel@galen.zko.hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: Paul P Komkoff Jr , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Return-path: Received: from palrel13.hp.com ([156.153.255.238]:16315 "EHLO palrel13.hp.com") by vger.kernel.org with ESMTP id S1751128AbWEVSsr (ORCPT ); Mon, 22 May 2006 14:48:47 -0400 To: Vlad Yasevich In-Reply-To: <1148322152.15322.299.camel@galen.zko.hp.com> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org > IP id is set to 0 on unconnected sockets when the DF bit is set (path > mtu discovery is enabled). Try issuing a connect() in your application > and see if the ids are increasing again. ID of zero again? I thought that went away years ago? Anyway, given the number of "helpful" devices out there willing to clear the DF bit, fragment and forward, perhaps always setting the IP ID to 0, even if DF is set, isn't such a good idea? rick jones