From owner-freebsd-ipfw@freebsd.org Sun Mar 11 16:22:32 2018 Return-Path: Delivered-To: freebsd-ipfw@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 13EDAF3700C for ; Sun, 11 Mar 2018 16:22:32 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id A6A2272DE9 for ; Sun, 11 Mar 2018 16:22:31 +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 mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id E6740209E for ; Sun, 11 Mar 2018 16:22:30 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w2BGMULS024126 for ; Sun, 11 Mar 2018 16:22:30 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w2BGMUoo024125 for freebsd-ipfw@FreeBSD.org; Sun, 11 Mar 2018 16:22:30 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: freebsd-ipfw@FreeBSD.org Subject: [Bug 216867] IPFW workstation rules block DNSSEC resulting in DNS failure on freebsd.org domains Date: Sun, 11 Mar 2018 16:22:31 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: conf X-Bugzilla-Version: 11.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: freebsd@oldach.net X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-ipfw@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-ipfw@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: IPFW Technical Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 11 Mar 2018 16:22:32 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D216867 --- Comment #2 from Helge Oldach --- (In reply to Mark Felder from comment #1) Tested and works. However the reass should come *before* the check-state as fragments (except= the first) don't include protocol and port numbers and thus cannot match check-state anyway. We need to reassemble first, then check-state will do t= he right thing. (It doesn't harm to implement as proposed, but we may save a f= ew cycles if we reass first.) Furthermore, along the same line we should not only reassemble UDP but any = IP packet (including IPv6), which is also suggested by ipfw(8) manpage: Usually a simple rule like: # reassemble incoming fragments ipfw add reass all from any to any in is all you need at the beginning of your ruleset. --=20 You are receiving this mail because: You are the assignee for the bug.=