diff --git a/en_US.ISO8859-1/books/handbook/advanced-networking/chapter.sgml b/en_US.ISO8859-1/books/handbook/advanced-networking/chapter.sgml
index 43b57d6d7f..69133dbd4e 100644
--- a/en_US.ISO8859-1/books/handbook/advanced-networking/chapter.sgml
+++ b/en_US.ISO8859-1/books/handbook/advanced-networking/chapter.sgml
@@ -3613,10 +3613,11 @@ round-trip min/avg/max/stddev = 2.530/2.643/2.774/0.103 ms</screen>
     <itemizedlist>
       <listitem>
 	<para>Running out of addresses.  Today this is not so much of a concern
-	  anymore since private address spaces
+	  anymore since RFC1918 private address space
 	  (<hostid role="ipaddr">10.0.0.0/8</hostid>,
-	  <hostid role="ipaddr">192.168.0.0/24</hostid>,
-	  etc.) and Network Address Translation (<acronym>NAT</acronym>) are
+	  <hostid role="ipaddr">172.16.0.0/12<hostid>, and
+	  <hostid role="ipaddr">192.168.0.0/16</hostid>)
+	  and Network Address Translation (<acronym>NAT</acronym>) are
 	  being employed.</para>
       </listitem>