From owner-freebsd-net@FreeBSD.ORG Mon Nov 28 20:11:49 2005 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8445016A425; Mon, 28 Nov 2005 20:11:49 +0000 (GMT) (envelope-from ru@ip.net.ua) Received: from tigra.ip.net.ua (tigra.ip.net.ua [82.193.96.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6240B43D68; Mon, 28 Nov 2005 20:11:29 +0000 (GMT) (envelope-from ru@ip.net.ua) Received: from localhost (rocky.ip.net.ua [82.193.96.2]) by tigra.ip.net.ua (8.12.11/8.12.11) with ESMTP id jASKBHee046839; Mon, 28 Nov 2005 22:11:17 +0200 (EET) (envelope-from ru@ip.net.ua) Received: from tigra.ip.net.ua ([82.193.96.10]) by localhost (rocky.ipnet [82.193.96.2]) (amavisd-new, port 10024) with LMTP id 25233-03; Mon, 28 Nov 2005 22:11:15 +0200 (EET) Received: from heffalump.ip.net.ua (heffalump.ip.net.ua [82.193.96.213]) by tigra.ip.net.ua (8.12.11/8.12.11) with ESMTP id jASK7N7h046732 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 28 Nov 2005 22:07:23 +0200 (EET) (envelope-from ru@ip.net.ua) Received: (from ru@localhost) by heffalump.ip.net.ua (8.13.4/8.13.4) id jASK7OaP064740; Mon, 28 Nov 2005 22:07:25 +0200 (EET) (envelope-from ru) Date: Mon, 28 Nov 2005 22:07:24 +0200 From: Ruslan Ermilov To: John Palmer Message-ID: <20051128200724.GG63300@ip.net.ua> References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="MGu/vTNewDGZ7tmp" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.9i X-Virus-Scanned: by amavisd-new at ip.net.ua Cc: freebsd-net@freebsd.org, freebsd-questions@freebsd.org Subject: Re: bad udp cksum 26ff! 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, 28 Nov 2005 20:11:49 -0000 --MGu/vTNewDGZ7tmp Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Nov 28, 2005 at 10:46:38AM -0800, John Palmer wrote: > I am running FreeBSD 5.4 p8. I did a tcpdump -vv -i em0. The output=20 > produced > a "bad udp cksum" with my DNS server. Does anyone know what it means? O= r,=20 > how I can > correct the problem? >=20 Turn off hardware checksums on em0, to make tcpdump(1) happy. Harmless otherwise. Cheers, --=20 Ruslan Ermilov ru@FreeBSD.org FreeBSD committer --MGu/vTNewDGZ7tmp Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDi2N8qRfpzJluFF4RAt9mAJ40LX7hfhLoA4RXhl+xKdgk6M6trgCbBEIj dcesoaYcqGHK9nnb8W/rdQc= =AH7T -----END PGP SIGNATURE----- --MGu/vTNewDGZ7tmp--