RFC 4191 on Default Router Preferences and More-Specific Routes

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

        RFC 4191

        Title:      Default Router Preferences and More-Specific
                    Routes
        Author(s):  R. Draves, D. Thaler
        Status:     Standards Track
        Date:       November 2005
        Mailbox:    richdr@microsoft.com, dthaler@microsoft.com
        Pages:      15
        Characters: 34672
        Updates/Obsoletes/SeeAlso:    None

        I-D Tag:    draft-ietf-ipv6-router-selection-07.txt

        URL:        ftp://ftp.rfc-editor.org/in-notes/rfc4191.txt

This document describes an optional extension to Router
Advertisement messages for communicating default router preferences
and more-specific routes from routers to hosts.  This improves the
ability of hosts to pick an appropriate router, especially when the
host is multi-homed and the routers are on different links.  The
preference values and specific routes advertised to hosts require
administrative configuration; they are not automatically derived
from routing tables.

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

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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