From owner-svn-doc-head@FreeBSD.ORG Tue Aug 27 14:55:39 2013 Return-Path: Delivered-To: svn-doc-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 9EF9C15E; Tue, 27 Aug 2013 14:55:39 +0000 (UTC) (envelope-from brd@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 724822D62; Tue, 27 Aug 2013 14:55:39 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.7/8.14.7) with ESMTP id r7REtdAe034781; Tue, 27 Aug 2013 14:55:39 GMT (envelope-from brd@svn.freebsd.org) Received: (from brd@localhost) by svn.freebsd.org (8.14.7/8.14.5/Submit) id r7REtdHc034780; Tue, 27 Aug 2013 14:55:39 GMT (envelope-from brd@svn.freebsd.org) Message-Id: <201308271455.r7REtdHc034780@svn.freebsd.org> From: Brad Davis Date: Tue, 27 Aug 2013 14:55:39 +0000 (UTC) To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r42592 - head/en_US.ISO8859-1/books/handbook/advanced-networking X-SVN-Group: doc-head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-doc-head@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: SVN commit messages for the doc tree for head List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Aug 2013 14:55:39 -0000 Author: brd Date: Tue Aug 27 14:55:38 2013 New Revision: 42592 URL: http://svnweb.freebsd.org/changeset/doc/42592 Log: - More IPv6 cleanup - Place more emphasis on running out of IPv4 addresses and cite IANA running out of IPv4 addresses. Reviewed by: gavin@ Modified: head/en_US.ISO8859-1/books/handbook/advanced-networking/chapter.xml Modified: head/en_US.ISO8859-1/books/handbook/advanced-networking/chapter.xml ============================================================================== --- head/en_US.ISO8859-1/books/handbook/advanced-networking/chapter.xml Tue Aug 27 14:01:43 2013 (r42591) +++ head/en_US.ISO8859-1/books/handbook/advanced-networking/chapter.xml Tue Aug 27 14:55:38 2013 (r42592) @@ -5021,17 +5021,25 @@ redirect_port tcp 192.168.0.3:80 80 - Running out of addresses. Today this is not so much of - a concern, since RFC1918 private address space (10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16) and - NAT are being employed. + Running out of addresses. For years the use of RFC1918 + private address space + (10.0.0.0/8, + 172.16.0.0/12, and + 192.168.0.0/16) and NAT has + slowed down the exhaustion. Even though, there are very few + remaining IPv4 addresses. The Internet Assigned Numbers + Authority (IANA) has issued the last of + the available major blocks to the Regional Registries. + Once each Region Registry runs out, there will be no more + available and switching to IPv6 will be + critical. - Router table entries were getting too large. This is - still a concern today. + Every block of IPv4 addresses allocated required routing + information to be exchanged between many routers on the + Internet, and these routing tables were getting too large to + allow efficient routing. @@ -5054,7 +5062,7 @@ redirect_port tcp 192.168.0.3:80 80 - There are other useful features of + There are many other useful features of IPv6: