I-D Action: draft-ietf-6man-addr-select-considerations-04.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 IPv6 Maintenance Working Group of the IETF.

	Title           : Considerations for IPv6 Address Selection Policy Changes
	Author(s)       : Tim Chown
                          Arifumi Matsumoto
	Filename        : draft-ietf-6man-addr-select-considerations-04.txt
	Pages           : 19
	Date            : 2011-10-31

   Where the source and/or destination node of an IPv6 communication is
   multi-addressed, a mechanism is required for the initiating node to
   select the most appropriate address pair for the communication.  RFC
   3484 (IPv6 Default Address Selection) [RFC3484] defines such a
   mechanism for nodes to perform source and destination address
   selection.  While RFC3484 recognised the need for implementations to
   be able to change the policy table, it did not define how this could
   be achieved.  Requirements have now emerged for administrators to be
   able to configure and potentially dynamically change RFC 3484 policy
   from a central control point, and for (nomadic) hosts to be able to
   obtain the policy for the network that they are currently attached to
   without manual user intervention.  This text discusses considerations
   for such policy changes, including examples of cases where a change
   of policy is required, and the likely frequency of such policy
   changes.  This text also includes some discussion on the need to also
   update RFC 3484, where default policies are currently defined.


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