From owner-freebsd-net@freebsd.org Wed Aug 17 12:55:30 2016 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id A9EB8BBD432 for ; Wed, 17 Aug 2016 12:55:30 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 9807418F0 for ; Wed, 17 Aug 2016 12:55:30 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id u7HCtUrS003711 for ; Wed, 17 Aug 2016 12:55:30 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-net@FreeBSD.org Subject: [Bug 211872] IPv6 UDP traffic sometimes sent using wrong mac address Date: Wed, 17 Aug 2016 12:55:30 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.0-RC1 X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: ae@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Aug 2016 12:55:30 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D211872 --- Comment #5 from Andrey V. Elsukov --- (In reply to Mike Andrews from comment #0) > 12:46:22.835272 00:25:90:57:21:b3 > 00:25:90:23:be:bc, ethertype IPv6 > (0x86dd), length 232: fdfa::fafa:d53a.53 > fdfa::fafa:d53b.15484: 47157* > 1/2/4 A 64.191.171.200 (170) > 12:46:27.836186 00:25:90:38:6f:fa > 00:25:90:57:21:b3, ethertype IPv6 > (0x86dd), length 92: fdfa::fafa:d53b.39323 > fdfa::fafa:d53a.53: 47157+ A? > www.fark.com. (30) > 12:46:27.836340 00:25:90:57:21:b3 > 00:25:90:23:be:bc, ethertype IPv6 > (0x86dd), length 232: fdfa::fafa:d53a.53 > fdfa::fafa:d53b.39323: 47157* > 1/2/4 A 64.191.171.200 (170) >=20 > 00:50:90:23:be:bc is a totally different 3rd machine. That's.... weird. = :) >=20 > Add the -T flag to the "host" command to force TCP, and it works. >=20 > Flip the queries around so that machine 1 queries machine 2, and it works. >=20 > I'm seeing similar issues with other similar machines (and similar hardwa= re, > all Supermicro machines with Intel em nics of varying vintage) that have > been updated to 11.0-RC1. All ware fine on 10.3-RELEASE. The only > em-specific tweak I've got is "-tso", but turning tso back on doesn't cha= nge > behavior any. Can you check `ndp -an` on the problematic machine at the time when you see wrong addresses? --=20 You are receiving this mail because: You are the assignee for the bug.=