From owner-freebsd-net@FreeBSD.ORG Mon Mar 17 06:55:07 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 CF9CE106564A for ; Mon, 17 Mar 2008 06:55:07 +0000 (UTC) (envelope-from bzeeb-lists@lists.zabbadoz.net) Received: from mail.cksoft.de (mail.cksoft.de [62.111.66.27]) by mx1.freebsd.org (Postfix) with ESMTP id 861AD8FC26 for ; Mon, 17 Mar 2008 06:55:07 +0000 (UTC) (envelope-from bzeeb-lists@lists.zabbadoz.net) Received: from localhost (amavis.str.cksoft.de [192.168.74.71]) by mail.cksoft.de (Postfix) with ESMTP id D66D741C751; Mon, 17 Mar 2008 07:55:05 +0100 (CET) X-Virus-Scanned: amavisd-new at cksoft.de Received: from mail.cksoft.de ([62.111.66.27]) by localhost (amavis.str.cksoft.de [192.168.74.71]) (amavisd-new, port 10024) with ESMTP id QD5tVKS-w0PG; Mon, 17 Mar 2008 07:55:05 +0100 (CET) Received: by mail.cksoft.de (Postfix, from userid 66) id 6558E41C75B; Mon, 17 Mar 2008 07:55:05 +0100 (CET) Received: from maildrop.int.zabbadoz.net (maildrop.int.zabbadoz.net [10.111.66.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.int.zabbadoz.net (Postfix) with ESMTP id 66C4244487F; Mon, 17 Mar 2008 06:54:50 +0000 (UTC) Date: Mon, 17 Mar 2008 06:54:49 +0000 (UTC) From: "Bjoern A. Zeeb" X-X-Sender: bz@maildrop.int.zabbadoz.net To: Mike Silbersack In-Reply-To: <20080317002414.C71897@odysseus.silby.com> Message-ID: <20080317065251.E50685@maildrop.int.zabbadoz.net> References: <20080312231330.D60219@odysseus.silby.com> <20080312232607.J60219@odysseus.silby.com> <20080313154547.F50685@maildrop.int.zabbadoz.net> <20080314005224.S65945@odysseus.silby.com> <20080314100707.F50685@maildrop.int.zabbadoz.net> <20080317002414.C71897@odysseus.silby.com> X-OpenPGP-Key: 0x14003F198FEFA3E77207EE8D2B58B8F83CCF1842 MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-net@freebsd.org Subject: Re: TCP options order changed in FreeBSD 7, incompatible with some routers X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Mar 2008 06:55:07 -0000 On Mon, 17 Mar 2008, Mike Silbersack wrote: > > On Fri, 14 Mar 2008, Bjoern A. Zeeb wrote: > >>> But I think the "good" case should look like it did before, per POLA. >> >> Ok, I am only printing it in case bad padding happens or one gave -v. >> >> The new patch is here: >> >> http://sources.zabbadoz.net/freebsd/patchset/20080314-01-tcpdump-print-tcp-option-padding.diff >> >> -- >> Bjoern A. Zeeb bzeeb at Zabbadoz dot NeT > > I still think the non-bad case should look exactly as it did before, no > matter what set of options was selected. :) > > I have not heard back from the tcpdump person that I contacted. :( Well I'd still like to be able to somehow see the padding if there is any without having to look at the hex output of each packet. But it's faily easy to get the behaviour you are requesting by simply removing the vflag now. -- Bjoern A. Zeeb bzeeb at Zabbadoz dot NeT Software is harder than hardware so better get it right the first time.