At Fri, 06 May 2011 13:48:19 -0400, Thomas Narten <nar...@us.ibm.com> wrote:
> I'm not entirely sure what to do here. RFC 4191 is not widely > implemented, AFAIK. It's in Windows Vista (and onwards) and also > Linux. Not sure where else (I'm guessing not on Macs?) (I'm not sure if the following information is really relevant to the discussion context, but am providing some fact in case it does.) Many major BSD variants (including FreeBSD) have been supporting the host part of default router preferences (but not more specific routes) for quite a long time (according to the source code repository, this feature was incorporated to FreeBSD in October 2005). I don't know the details of MacOS X on this point (or I'm so lazy that I've not checked its behavior using my laptop), but it at least seems to recognize the preference value: % ndp -r fe80::230:48ff:feb9:9a5c%en0 if=en0, flags=, pref=medium, expire=23m7s (note the "pref" field) --- JINMEI, Tatuya Internet Systems Consortium, Inc. -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------