Date: Tue, 28 Oct 2003 22:14:46 +0900 From: Hajimu UMEMOTO <ume@mahoroba.org> To: current@FreeBSD.org, net@FreeBSD.org, arch@FreeBSD.org Subject: Forward: HEADS UP! Default value of ip6_v6only changed Message-ID: <yge65i94i7t.wl%ume@mahoroba.org> References: <20031028063802.GC10818@canolog.ninthwonder.com>
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--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 <core@netbsd.org> 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--
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