@misc{rfc4191, series = {Request for Comments}, number = 4191, howpublished = {RFC 4191}, publisher = {RFC Editor}, doi = {10.17487/RFC4191}, url = {https://www.rfc-editor.org/info/rfc4191}, author = {Dave Thaler and Richard P. Draves}, title = {{Default Router Preferences and More-Specific Routes}}, pagetotal = 15, year = 2005, month = nov, 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{]}}, }