I-D Action:draft-ietf-6man-addr-select-considerations-03.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)       : T. Chown
	Filename        : draft-ietf-6man-addr-select-considerations-03.txt
	Pages           : 19
	Date            : 2011-03-14

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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