IPv6 chapter diff

[Asenchi]

Here is a revision taking into consideration those that replied.

Marc, I cc'd you to point out the new changes.  Thx.

--- chapter.sgml.old    Sat Mar 20 17:36:40 2004
+++ chapter.sgml        Wed Mar 31 10:08:15 2004
@@ -5000,7 +5000,7 @@
       <title>Further Reading</title>

       <para>The DHCP protocol is fully described in
-        <ulink url="http://www.freesoft.org/CIE/RFC/2131/">RFC
2131</ulink>.+        <ulink
url="http://www.ietf.org/rfc/rfc2131.txt?number=2131">RFC 2131</ulink>. 
       An informational resource has also been set up at         <ulink
url="http://www.dhcp.org/">dhcp.org</ulink>.</para>     </sect2>
@@ -5263,7 +5263,7 @@
       </para>

       <para>
-        RFC1034 and RFC1035 dictate the DNS protocol.
+        <ulink
url="http://www.ietf.org/rfc/rfc1034.txt?number=1034">RFC1034</ulink>
and <ulink url="http://www.ietf.org/rfc/rfc1035.txt?number=1035">RFC1035
dictate the DNS protocol.       </para>

       <para>
@@ -6259,13 +6259,13 @@

        <listitem>
          <para><ulink
-             url="ftp://ftp.isi.edu/in-notes/rfc1034.txt">RFC1034
+            
url="http://www.ietf.org/rfc/rfc1034.txt?number=1034">RFC1034           
  - Domain Names - Concepts and Facilities</ulink></para>       
</listitem>

        <listitem>
          <para><ulink
-             url="ftp://ftp.isi.edu/in-notes/rfc1035.txt">RFC1035
+             url="<ulink
url="http://www.ietf.org/rfc/rfc1035.txt?number=1035">RFC1035           
  - Domain Names - Implementation and Specification</ulink></para>      
 </listitem>       </itemizedlist>
@@ -6675,7 +6675,7 @@
       <para>Each machine and interface behind the LAN should be
         assigned IP address numbers in the private network space as
         defined by <ulink
-        url="ftp://ftp.isi.edu/in-notes/rfc1918.txt">RFC 1918</ulink>
+        url="http://www.ietf.org/rfc/rfc1918.txt?number=1918">RFC
1918</ulink>         and have a default gateway of the
<application>natd</application> machine's internal IP        
address.</para>

@@ -7550,7 +7550,7 @@

     <itemizedlist>
       <listitem>
-       <para>Address autoconfiguration (RFC2462)</para>
+       <para>Address autoconfiguration (<ulink
url="http://www.ietf.org/rfc/rfc2462.txt?number=2462">RFC2462</ulink>)<
/para>       </listitem>

       <listitem>
@@ -7681,7 +7681,7 @@
        scrambled Ethernet MAC as part of the auto configuration.</para>

       <para>For further information on the structure of IPv6 addresses
-       see RFC3513.</para>
+       see <ulink
url="http://www.ietf.org/rfc/rfc3513.txt?number=3513">RFC3513</ulink>.<
/para>     </sect2>

     <sect2>