From owner-freebsd-questions@FreeBSD.ORG Thu Jul 7 22:44:37 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C2FC6106564A for ; Thu, 7 Jul 2011 22:44:37 +0000 (UTC) (envelope-from mexas@bristol.ac.uk) Received: from dirj.bris.ac.uk (dirj.bris.ac.uk [137.222.10.78]) by mx1.freebsd.org (Postfix) with ESMTP id 7D5648FC19 for ; Thu, 7 Jul 2011 22:44:37 +0000 (UTC) Received: from ncsc.bris.ac.uk ([137.222.10.41]) by dirj.bris.ac.uk with esmtp (Exim 4.72) (envelope-from ) id 1QexJE-00019K-12 for freebsd-questions@freebsd.org; Thu, 07 Jul 2011 23:44:36 +0100 Received: from mech-cluster241.men.bris.ac.uk ([137.222.187.241]) by ncsc.bris.ac.uk with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.72) (envelope-from ) id 1QexJD-0004JU-TQ for freebsd-questions@freebsd.org; Thu, 07 Jul 2011 23:44:35 +0100 Received: from mech-cluster241.men.bris.ac.uk (localhost [127.0.0.1]) by mech-cluster241.men.bris.ac.uk (8.14.4/8.14.4) with ESMTP id p67MiZn9027664 for ; Thu, 7 Jul 2011 23:44:35 +0100 (BST) (envelope-from mexas@bristol.ac.uk) Received: (from mexas@localhost) by mech-cluster241.men.bris.ac.uk (8.14.4/8.14.4/Submit) id p67MiZeA027663 for freebsd-questions@freebsd.org; Thu, 7 Jul 2011 23:44:35 +0100 (BST) (envelope-from mexas@bristol.ac.uk) X-Authentication-Warning: mech-cluster241.men.bris.ac.uk: mexas set sender to mexas@bristol.ac.uk using -f Date: Thu, 7 Jul 2011 23:44:35 +0100 From: Anton Shterenlikht To: freebsd-questions@freebsd.org Message-ID: <20110707224435.GA27624@mech-cluster241.men.bris.ac.uk> Mail-Followup-To: freebsd-questions@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.3i Subject: tftp - bad checksum error? can't transfer file X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Jul 2011 22:44:37 -0000 I'm trying to troubleshoot tftpd(8). % grep boot /etc/inetd.conf tftp dgram udp wait root /usr/libexec/tftpd tftpd -dd -l -s /tftpboot tftp dgram udp wait root /usr/libexec/tftpd tftpd -dd -l -s /tftpboot bootps dgram udp wait root /usr/libexec/bootpd bootpd -d4 -t0 /etc/bootptab % I'm trying to boot another node via bootp/tftp. I'm monitoring what's going on with tcpdump -vv. bootpd starts fine, and seems to read /etc/bootptab correctly. But after that nothing happens, and after a few minutes I get on the console of the host which I want to boot: > bootp()/bsd.rd.IP32 Unable to execute bootp()/bsd.rd.IP32: invalid argument > Does this tcpdump fragment help to understand where the problem is: 192.168.232.10.15388 > buzi.tftp: [no cksum] 25 RRQ "/bsd.rd.IP32" octet ( o 23:25:21.024160 IP (tos 0x0, ttl 64, id 56, offset 0, flags [none], proto UDP (1 7), length 30, bad cksum 0 (->293a)!) buzi.19330 > 192.168.232.10.15388: [udp sum ok] UDP, length 2 23:25:51.013759 IP (tos 0x0, ttl 255, id 256, offset 0, flags [none], proto UDP (17), length 53) I'm happy to provide more detailed information on the settings I use and a longer tcpdump output, if this helps. Many thanks Anton -- Anton Shterenlikht Room 2.6, Queen's Building Mech Eng Dept Bristol University University Walk, Bristol BS8 1TR, UK Tel: +44 (0)117 331 5944 Fax: +44 (0)117 929 4423