Internet DRAFT - draft-ietf-ipv6-default-addr-select


A new Request for Comments is now available in online RFC libraries.

        RFC 3484

        Title:      Default Address Selection for Internet Protocol
                    version 6 (IPv6)
        Author(s):  R. Draves
        Status:     Standards Track
        Date:       February 2003
        Pages:      24
        Characters: 55076
        Updates/Obsoletes/SeeAlso:    None

        I-D Tag:    draft-ietf-ipv6-default-addr-select-09.txt


This document describes two algorithms, for source address selection
and for destination address selection.  The algorithms specify default
behavior for all Internet Protocol version 6 (IPv6) implementations.
They do not override choices made by applications or upper-layer
protocols, nor do they preclude the development of more advanced
mechanisms for address selection.  The two algorithms share a common
context, including an optional mechanism for allowing administrators
to provide policy that can override the default behavior.  In dual
stack implementations, the destination address selection algorithm can
consider both IPv4 and IPv6 addresses - depending on the available
source addresses, the algorithm might prefer IPv6 addresses over IPv4
addresses, or vice-versa.

All IPv6 nodes, including both hosts and routers, must implement
default address selection as defined in this specification.

This document is a product of the IP Version 6 Working Group of the

This is now a Proposed Standard Protocol.

This document specifies an Internet standards track protocol for
the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the
"Internet Official Protocol Standards" (STD 1) for the
standardization state and status of this protocol.  Distribution
of this memo is unlimited.

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