I-D ACTION:draft-ietf-ospf-ospfv3-update-19.txt

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A New Internet-Draft is available from the on-line Internet-Drafts 
directories.
This draft is a work item of the Open Shortest Path First IGP Working Group of the IETF.

	Title		: OSPF for IPv6
	Author(s)	: D. Ferguson
	Filename	: draft-ietf-ospf-ospfv3-update-19.txt
	Pages		: 108
	Date		: 2008-4-1
	
This document describes the modifications to OSPF to support version
   6 of the Internet Protocol (IPv6).  The fundamental mechanisms of
   OSPF (flooding, Designated Router (DR) election, area support, SPF
   calculations, etc.) remain unchanged.  However, some changes have
   been necessary, either due to changes in protocol semantics between
   IPv4 and IPv6, or simply to handle the increased address size of
   IPv6.

   Changes between OSPF for IPv4 and this document include the
   following.  Addressing semantics have been removed from OSPF packets
   and the basic LSAs.  New LSAs have been created to carry IPv6
   addresses and prefixes.  OSPF now runs on a per-link basis rather
   than on a per-IP-subnet basis.  Flooding scope for LSAs has been
   generalized.  Authentication has been removed from the OSPF protocol
   and instead relies on IPv6's Authentication Header and Encapsulating
   Security Payload.

   Even with larger IPv6 addresses, most packets in OSPF for IPv6 are
   almost as compact as those in OSPF for IPv4.  Most fields and packet-
   size limitations present in OSPF for IPv4 have been relaxed.  In
   addition, option handling has been made more flexible.

   All of OSPF for IPv4's optional capabilities, including demand
   circuit support and Not-So-Stubby Areas (NSSAs) are also supported in
   OSPF for IPv6.

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-ospf-ospfv3-update-19.txt

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

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implementation to automatically retrieve the ASCII version of the
Internet-Draft.
<ftp://ftp.ietf.org/internet-drafts/draft-ietf-ospf-ospfv3-update-19.txt>
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