<?xml version='1.0'?>

<reference anchor='RFC2588'>

<front>
<title>IP Multicast and Firewalls</title>
<author initials='R.' surname='Finlayson' fullname='Ross Finlayson'>
<organization>Live Networks, Inc. (LIVE.COM)</organization>
<address>
<email>finlayson@live.com</email>
<uri>http://www.live.com/</uri></address></author>
<date month='May' year='1999' />
<abstract>
<t>Many organizations use a firewall computer that acts as a security
gateway between the public Internet and their private, internal
'intranet'.
In this document, we discuss the issues surrounding the
traversal of IP multicast traffic across a firewall, and describe
possible ways in which a firewall can implement and control this
traversal.
We also explain why some firewall mechanisms - such as
SOCKS - that were designed specifically for unicast traffic, are less
appropriate for multicast.</t></abstract></front>

<seriesInfo name='RFC' value='2588' />
</reference>
