From owner-freebsd-questions Sat Dec 28 10:28:52 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8A21137B401 for ; Sat, 28 Dec 2002 10:28:51 -0800 (PST) Received: from east.ath.cx (catv-50622a7a.nyircatv.broadband.hu [80.98.42.122]) by mx1.FreeBSD.org (Postfix) with ESMTP id F189243EC2 for ; Sat, 28 Dec 2002 10:28:49 -0800 (PST) (envelope-from witch@kronos.HomeUnix.com) X-Complaints-To: abuse@kronos.homeunix.com X-SMTP-Authenticated: CRAM-MD5 X-message-flag: Ditch the crappy mail client and get a real one! Received: from slave.east.ath.cx (3aapk5x2bcdh6a7i@slave.kronos.homeunix.com [10.1.1.1]) (authenticated bits=0) by east.ath.cx (8.12.6/8.12.6) with ESMTP id gBSISjll080348 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=OK) for ; Sat, 28 Dec 2002 19:28:45 +0100 (CET) (envelope-from witch@slave.east.ath.cx) Received: from slave.east.ath.cx (localhost [127.0.0.1]) by slave.east.ath.cx (8.12.6/8.12.6) with ESMTP id gBSISjQo051106 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO) for ; Sat, 28 Dec 2002 19:28:45 +0100 (CET) (envelope-from witch@slave.east.ath.cx) Received: (from witch@localhost) by slave.east.ath.cx (8.12.6/8.12.6/Submit) id gBSISe0d051057; Sat, 28 Dec 2002 19:28:40 +0100 (CET) Date: Sat, 28 Dec 2002 19:28:40 +0100 (CET) From: Andrew Prewett Reply-To: Andrew Prewett To: FreeBSD Questions Subject: Re: off topic .. interpretation of tcpdump In-Reply-To: <20021228162601.GA681@raggedclown.net> Message-ID: <20021228192012.L46519@slave.east.ath.cx> References: <20021228162601.GA681@raggedclown.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Today Cliff Sarginson wrote: > Hello, > This is my festive season question. > I was having some problems with my SMTP mail connection to my ISP. > So I tcpdump'ed the ethernet ADSL connection. > I think I know what most of it means, but can anyone tell me what > the following messages, every 2 seconds mean ? > It is not a problem, I just would like to know :) > > 17:22:00.343309 M 0:1:71:2:e6:61 > 1:0:0:0:0:0 802.1d ui/C > 17:22:02.443185 M 0:1:71:2:e6:61 > 1:0:0:0:0:0 802.1d ui/C If you want more friendly output, then try: # tcpdump -s 1528 -lenx | tcpshow -cooked (tcpshow is in ports if not already installed) -andrew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message