tree e63624a4bc0647908520202ff4a63ec348e3ce6c
parent dacc5d4197c1f8ac12938a594f7e4131cb937cb2
author Lubomir Rintel <lkundrak@v3.sk> 1426518107 +0100
committer Stephen Hemminger <shemming@brocade.com> 1427237123 -0700

ip: support RFC4191 router preference

This allows querying and setting the route preference. It's usually set from
the IPv6 Neighbor Discovery Router Advertisement messages.

Introduced in "ipv6: expose RFC4191 route preference via rtnetlink", enqueued
for Linux 4.1.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>