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
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ftp://ftp.ietf.org/internet-drafts/
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Internet-Draft.
- <ftp://ftp.ietf.org/internet-drafts/draft-ietf-ospf-ospfv3-update-19.txt>
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