From owner-freebsd-net@freebsd.org Sun Feb 14 23:23:20 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 0CA87AA8889 for ; Sun, 14 Feb 2016 23:23:20 +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 F2F346E0 for ; Sun, 14 Feb 2016 23:23:19 +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 u1ENNI4D060510 for ; Sun, 14 Feb 2016 23:23:19 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-net@FreeBSD.org Subject: [Bug 207087] kernel: r295285 in 10.2-STABLE breaks OpenVPN functionality Date: Sun, 14 Feb 2016 23:23:19 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 10.2-STABLE X-Bugzilla-Keywords: regression X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: gnn@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: gnn@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: 2.1.20 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 14 Feb 2016 23:23:20 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D207087 --- Comment #24 from George V. Neville-Neil --- Thanks for the update and the new files. I am trying to reproduce this on = HEAD still. With your latest test were you still using IPFW and NAT or was this just vanilla forwarding? I have setup some test hosts in the lab The setup is: 172.16.0.1 172.16.0.2 172.16.1.2 172.16.1.3 source <-> router <-> sink=20 1500 576 and I'm doing a ping -s 1024 -D 172.16.1.3 and I do see the MTU error retur= ning on the source: 36 bytes from 172.16.0.2: frag needed and DF set (MTU 576) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 041c 0000 0 0000 3f 01 debc 172.16.0.1 172.16.1.3 Your hardware addresses in the pcaps are obfuscated so its hard to tell wha= ts happening at layer 2. --=20 You are receiving this mail because: You are on the CC list for the bug.=