Date: Tue, 27 Aug 2013 14:55:39 +0000 (UTC) From: Brad Davis <brd@FreeBSD.org> 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 Message-ID: <201308271455.r7REtdHc034780@svn.freebsd.org>
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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</pro <itemizedlist> <listitem> - <para>Running out of addresses. Today this is not so much of - a concern, since RFC1918 private address space (<hostid - role="ipaddr">10.0.0.0/8</hostid>, <hostid - role="ipaddr">172.16.0.0/12</hostid>, and <hostid - role="ipaddr">192.168.0.0/16</hostid>) and - <acronym>NAT</acronym> are being employed.</para> + <para>Running out of addresses. For years the use of RFC1918 + private address space + (<hostid role="ipaddr">10.0.0.0/8</hostid>, + <hostid role="ipaddr">172.16.0.0/12</hostid>, and + <hostid role="ipaddr">192.168.0.0/16</hostid>) and NAT has + slowed down the exhaustion. Even though, there are very few + remaining IPv4 addresses. The Internet Assigned Numbers + Authority (<acronym>IANA</acronym>) 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 <acronym>IPv6</acronym> will be + critical.</para> </listitem> <listitem> - <para>Router table entries were getting too large. This is - still a concern today.</para> + <para>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.</para> </listitem> </itemizedlist> @@ -5054,7 +5062,7 @@ redirect_port tcp 192.168.0.3:80 80</pro </listitem> </itemizedlist> - <para>There are other useful features of + <para>There are many other useful features of <acronym>IPv6</acronym>:</para> <itemizedlist>
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