From owner-svn-doc-projects@FreeBSD.ORG Fri May 24 04:19:17 2013 Return-Path: Delivered-To: svn-doc-projects@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 3371CE67; Fri, 24 May 2013 04:19:17 +0000 (UTC) (envelope-from hrs@FreeBSD.org) Received: from mail.allbsd.org (gatekeeper.allbsd.org [IPv6:2001:2f0:104:e001::32]) by mx1.freebsd.org (Postfix) with ESMTP id 3481583B; Fri, 24 May 2013 04:19:16 +0000 (UTC) Received: from alph.d.allbsd.org (p2175-ipbf701funabasi.chiba.ocn.ne.jp [122.25.209.175]) (authenticated bits=128) by mail.allbsd.org (8.14.5/8.14.5) with ESMTP id r4O4IwJ7029226 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 24 May 2013 13:19:08 +0900 (JST) (envelope-from hrs@FreeBSD.org) Received: from localhost (localhost [127.0.0.1]) (authenticated bits=0) by alph.d.allbsd.org (8.14.5/8.14.5) with ESMTP id r4O4IvpG090573; Fri, 24 May 2013 13:18:58 +0900 (JST) (envelope-from hrs@FreeBSD.org) Date: Fri, 24 May 2013 13:15:37 +0900 (JST) Message-Id: <20130524.131537.100781632853398978.hrs@allbsd.org> To: trhodes@FreeBSD.org Subject: Re: svn commit: r41721 - projects/ISBN_1-57176-407-0/en_US.ISO8859-1/books/handbook/advanced-networking From: Hiroki Sato In-Reply-To: <201305231151.r4NBpYaA081350@svn.freebsd.org> References: <201305231151.r4NBpYaA081350@svn.freebsd.org> X-PGPkey-fingerprint: BDB3 443F A5DD B3D0 A530 FFD7 4F2C D3D8 2793 CF2D X-Mailer: Mew version 6.5 on Emacs 24.3 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Multipart/Signed; protocol="application/pgp-signature"; micalg=pgp-sha1; boundary="--Security_Multipart(Fri_May_24_13_15_37_2013_920)--" Content-Transfer-Encoding: 7bit X-Virus-Scanned: clamav-milter 0.97.4 at gatekeeper.allbsd.org X-Virus-Status: Clean X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.7 (mail.allbsd.org [133.31.130.32]); Fri, 24 May 2013 13:19:09 +0900 (JST) X-Spam-Status: No, score=-94.3 required=13.0 tests=CONTENT_TYPE_PRESENT, ONLY1HOPDIRECT,QENCPTR1,RCVD_IN_PBL,SAMEHELOBY2HOP,USER_IN_WHITELIST autolearn=no version=3.3.2 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on gatekeeper.allbsd.org Cc: svn-doc-projects@FreeBSD.org, doc-committers@FreeBSD.org X-BeenThere: svn-doc-projects@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: SVN commit messages for doc projects trees List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 May 2013 04:19:17 -0000 ----Security_Multipart(Fri_May_24_13_15_37_2013_920)-- Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hi Tom, Tom Rhodes wrote in <201305231151.r4NBpYaA081350@svn.freebsd.org>: tr> Author: trhodes tr> Date: Thu May 23 11:51:34 2013 tr> New Revision: 41721 tr> URL: http://svnweb.freebsd.org/changeset/doc/41721 tr> tr> Log: tr> Discuss (in brief) RFC 3943 sections 3.6 and 3.7. tr> tr> PR: 99506 tr> Reviewed by: bjk tr> tr> Modified: tr> projects/ISBN_1-57176-407-0/en_US.ISO8859-1/books/handbook/advanced-networking/chapter.xml (snip) tr> + This option may not be required in most cases and is tr> + available only for compatibility while services are updated tr> + to support IPv6. To enable the feature, tr> + add the following to /etc/rc.conf: This part "while services are updated to support IPv6" looks strange to me. IPv4-mapped IPv6 address is required for programs which supports only IPv6 to also support IPv4 on a dual stack node. If this is disabled, IPv6-only programs can work only with IPv6 address. This is not for IPv4-only programs. Although all of IPv6-ready programs in the base system do not use IPv4-mapped IPv6 address for IPv4 sockets regardless of this option, the necessity of this option depends on application (Java, for example). People should also refer Section 4.2 in RFC 4038. -- Hiroki ----Security_Multipart(Fri_May_24_13_15_37_2013_920)-- Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (FreeBSD) iEYEABECAAYFAlGe6WkACgkQTyzT2CeTzy0vjQCgwlyLFm4LMWLqCwnx2EctbgRr htIAnA7iucn8PXjQf7lGwPCHOl0zDtMc =4aQZ -----END PGP SIGNATURE----- ----Security_Multipart(Fri_May_24_13_15_37_2013_920)----