From owner-freebsd-arch@FreeBSD.ORG Tue Oct 28 05:15:00 2003 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 315AA16A4CE; Tue, 28 Oct 2003 05:15:00 -0800 (PST) Received: from cheer.mahoroba.org (flets19-227.kamome.or.jp [218.45.19.227]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2A6A743FE0; Tue, 28 Oct 2003 05:14:56 -0800 (PST) (envelope-from ume@mahoroba.org) Received: from mille.mahoroba.org (IDENT:2DsfpExvzajADC+7WO+s7MEpc9vDUSEiMXHEiEsE1eNJ8LzW0t3ryGTbe/XMr4GH@mille.mahoroba.org [IPv6:3ffe:501:185b:8010:202:2dff:fe41:8630]) (user=ume mech=CRAM-MD5 bits=0)h9SDEkJR063790 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 28 Oct 2003 22:14:46 +0900 (JST) (envelope-from ume@mahoroba.org) Date: Tue, 28 Oct 2003 22:14:46 +0900 Message-ID: From: Hajimu UMEMOTO To: current@FreeBSD.org, net@FreeBSD.org, arch@FreeBSD.org References: <20031028063802.GC10818@canolog.ninthwonder.com> User-Agent: Wanderlust/2.11.0 (Wonderwall) SEMI/1.14.5 (Awara-Onsen) FLIM/1.14.5 (Demachiyanagi) APEL/10.6 Emacs/21.3 (i386--freebsd) MULE/5.0 (=?ISO-2022-JP?B?GyRCOC1MWhsoQg==?=) X-Operating-System: FreeBSD 4.8-RELEASE-p13 MIME-Version: 1.0 (generated by SEMI 1.14.5 - "Awara-Onsen") Content-Type: multipart/mixed; boundary="Multipart_Tue_Oct_28_22:14:46_2003-1" X-Virus-Scanned: by amavisd-new X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on cheer.mahoroba.org Subject: Forward: HEADS UP! Default value of ip6_v6only changed X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Oct 2003 13:15:00 -0000 --Multipart_Tue_Oct_28_22:14:46_2003-1 Content-Type: text/plain; charset=US-ASCII Hi, Our default of net.inet6.ip6.v6only was off in 4.X, and was changed to on on 5.X to follow NetBSD's practice. This behavior on 5.X breaks RFC2553/3493, and the change was intentional from security consideration. But, NetBSD changed it off by default. How do you think our default of on? --Multipart_Tue_Oct_28_22:14:46_2003-1 Content-Type: message/rfc822 X-Sieve: CMU Sieve 2.2 Delivered-To: tech-net@netbsd.org Date: Tue, 28 Oct 2003 01:38:02 -0500 From: NetBSD OS PMC To: tech-net@netbsd.org, current-users@netbsd.org Subject: HEADS UP! Default value of ip6_v6only changed Message-ID: <20031028063802.GC10818@canolog.ninthwonder.com> Mail-Followup-To: tech-net@netbsd.org, current-users@netbsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.1i Sender: tech-net-owner@NetBSD.org Precedence: list X-Virus-Scanned: by amavisd-new X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on cheer.mahoroba.org The default value of ip6_v6only (sysctl net.inet6.ip6.v6only) has been changed. The new value brings us closer in line with current RFC-defined behavior and practices. Itojun still has significant concerns about the new default behavior. His concerns have been well-documented in ftp://ftp.itojun.org/pub/paper/draft-cmetz-v6ops-v4mapped-api-harmful-00.txt Best Regards, NetBSD OS PMC (core) -- Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan ume@mahoroba.org ume@bisd.hitachi.co.jp ume@{,jp.}FreeBSD.org http://www.imasy.org/~ume/ --Multipart_Tue_Oct_28_22:14:46_2003-1--