From owner-freebsd-net@FreeBSD.ORG Fri Mar 7 23:53:38 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 21952106567A for ; Fri, 7 Mar 2008 23:53:38 +0000 (UTC) (envelope-from fox@verio.net) Received: from dfw-smtpout1.email.verio.net (dfw-smtpout1.email.verio.net [129.250.36.41]) by mx1.freebsd.org (Postfix) with ESMTP id F38B38FC30 for ; Fri, 7 Mar 2008 23:53:37 +0000 (UTC) (envelope-from fox@verio.net) Received: from [129.250.36.63] (helo=dfw-mmp3.email.verio.net) by dfw-smtpout1.email.verio.net with esmtp id 1JXmNd-0007Ru-Gw for freebsd-net@freebsd.org; Fri, 07 Mar 2008 23:53:37 +0000 Received: from [129.250.40.241] (helo=limbo.int.dllstx01.us.it.verio.net) by dfw-mmp3.email.verio.net with esmtp id 1JXmNd-0000wQ-Cu for freebsd-net@freebsd.org; Fri, 07 Mar 2008 23:53:37 +0000 Received: by limbo.int.dllstx01.us.it.verio.net (Postfix, from userid 1000) id 491608E296; Fri, 7 Mar 2008 17:53:37 -0600 (CST) Date: Fri, 7 Mar 2008 17:53:37 -0600 From: David DeSimone To: freebsd-net@freebsd.org Message-ID: <20080307235336.GB16791@verio.net> Mail-Followup-To: freebsd-net@freebsd.org References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; x-action=pgp-signed Content-Disposition: inline In-Reply-To: Precedence: bulk User-Agent: Mutt/1.5.9i Subject: Re: RELENG-7 tcp connectivity problems with certain clients X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 Mar 2008 23:53:38 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Jake Rizzo wrote: > > 16:04:31.445390 IP (tos 0x20, ttl 109, id 41184, offset 0, flags [DF], proto > TCP (6), length 48) xxxxx.comcastbusiness.net.22625 > 192.168.1.104.http: S, > cksum 0x81e2 (correct), 3539746141:3539746141(0) win 16384 1380,nop,nop,sackOK> > 16:04:31.445405 IP (tos 0x0, ttl 64, id 55077, offset 0, flags [DF], proto > TCP (6), length 48, bad cksum 0 (->b21)!) 192.168.1.104.http > > xxxxx.comcastbusiness.net.22625: S, cksum 0x58a4 (incorrect (-> 0x8f6e), tcpdump is pointing out some bad checksums in your outgoing packets. Maybe you should try ifconfig -txcsum? - -- David DeSimone == Network Admin == fox@verio.net "This email message is intended for the use of the person to whom it has been sent, and may contain information that is confidential or legally protected. If you are not the intended recipient or have received this message in error, you are not authorized to copy, dis- tribute, or otherwise use this message or its attachments. Please notify the sender immediately by return e-mail and permanently delete this message and any attachments. Verio, Inc. makes no warranty that this email is error or virus free. Thank you." --Lawyer Bot 6000 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFH0dWAFSrKRjX5eCoRAsHaAKCVgiF/mYtzNCfh/UDpPRLfh49+4ACdEbNi xCNLaoT01jm/ovz/cGyXUvQ= =Oy/W -----END PGP SIGNATURE-----