<?xml version='1.0'?>

<reference anchor='RFC2101'>

<front>
<title>IPv4 Address Behaviour Today</title>
<author initials='B.E.' surname='Carpenter' fullname='Brian E. Carpenter'>
<organization>Computing and Networks Division</organization>
<address>
<postal>
<street>CERN</street>
<street>European Laboratory for Particle Physics</street>
<street>1211 Geneva 23</street>
<country>Switzerland</country></postal>
<email>brian@dxcoms.cern.ch</email></address></author>
<author initials='J.' surname='Crowcroft' fullname='Jon Crowcroft'>
<organization>Dept. of Computer Science</organization>
<address>
<postal>
<street>University College London</street>
<street>London WC1E 6BT</street>
<country>UK</country></postal>
<email>j.crowcroft@cs.ucl.ac.uk</email></address></author>
<author initials='Y.' surname='Rekhter' fullname='Yakov Rekhter'>
<organization>Cisco systems</organization>
<address>
<postal>
<street>170 West Tasman Drive</street>
<street>San Jose</street>
<country>USA</country></postal>
<phone>+1 914 528 0090</phone>
<facsimile>+1 408 526-4952</facsimile>
<email>yakov@cisco.com</email></address></author>
<date month='February' year='1997' />
<area>Internet</area>
<keyword>internet protocol version 4</keyword>
<abstract>
<t>
   The main purpose of this note is to clarify the current
   interpretation of the 32-bit IP version 4 address space, whose
   significance has changed substantially since it was originally
   defined.  A short section on IPv6 addresses mentions the main points
   of similarity with, and difference from, IPv4.
</t></abstract></front>

<seriesInfo name='RFC' value='2101' />
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</reference>
