From owner-freebsd-stable@FreeBSD.ORG Sat Jan 28 22:14:38 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1794116A423; Sat, 28 Jan 2006 22:14:38 +0000 (GMT) (envelope-from SRS0=rlehB1Ps=3Y=metro.cx=fbsd@sonologic.nl) Received: from mx1.sonologic.nl (mx1.sonologic.nl [82.94.245.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 24B3743D53; Sat, 28 Jan 2006 22:14:36 +0000 (GMT) (envelope-from SRS0=rlehB1Ps=3Y=metro.cx=fbsd@sonologic.nl) Received: from [10.1.5.2] (a80-127-84-188.adsl.xs4all.nl [80.127.84.188]) (authenticated bits=0) by mx1.sonologic.nl (8.13.3/8.13.3) with ESMTP id k0SMEZor065959; Sat, 28 Jan 2006 22:14:35 GMT Message-ID: <43DBED3F.3000408@metro.cx> Date: Sat, 28 Jan 2006 23:16:31 +0100 From: Koen Martens Organization: Sonologic User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050317 Thunderbird/1.0.2 Mnenhy/0.7.2.0 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Oleg Bulyzhin References: <43DB8EA6.7070503@metro.cx> <20060128211710.GA29790@lath.rinet.ru> In-Reply-To: <20060128211710.GA29790@lath.rinet.ru> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Helo-Milter-Authen: gmc@sonologic.nl, fbsd@metro.cx, mx1 Received-SPF: pass (mx1.sonologic.nl: 80.127.84.188 is authenticated by a trusted mechanism) Cc: freebsd-stable@freebsd.org Subject: Re: ipfilter + bge strangeness X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 28 Jan 2006 22:14:38 -0000 Oleg Bulyzhin wrote: > Could you please run 'tcpdump -nvi bge0' while you are generating > dns traffic (having bge0 checksum offloading on)? > > 'netstat -sp udp' output might be helpful too. Sure thing, although it happens with other kinds of traffic too (in the dump, there's some NTP for example). Here's the netstat output before: http://www.metro.cx/bge/pre.txt Here's the tcpdump output: http://www.metro.cx/bge/tcpdump.txt And netstat after..: http://www.metro.cx/bge/post.txt Seems like the bad checksums are on outgoing packets only, which sort of explains why with 5.4 there were no problems (as it only has the option rxcsum). txcsum and rxcsum are linked however, it is either both on or both off on 6-stable.. Thanks for your reply, Koen -- K.F.J. Martens, Sonologic, http://www.sonologic.nl/ Networking, hosting, embedded systems, unix, artificial intelligence. Public PGP key: http://www.metro.cx/pubkey-gmc.asc Wondering about the funny attachment your mail program can't read? Visit http://www.openpgp.org/