Default Router Preferences and More-Specific Routes
RFC 4191, “Default Router Preferences and More-Specific Routes”, is a Proposed Standard document published in November 2005 by R. Draves, D. Thaler. The canonical text is published by the RFC Editor.
Abstract
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. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 4191 is hosted at rfc-editor.org. Available in TXT,HTML.
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