From: Andy Gospodarek <[email protected]> Date: Thu, 13 Aug 2015 10:39:01 -0400
> Like the ipv4 patch with a similar title, this adds a sysctl to allow > the user to change routing behavior based on whether or not the > interface associated with the nexthop was an up or down link. The > default setting preserves the current behavior, but anyone that enables > it will notice that nexthops on down interfaces will no longer be > selected: > > net.ipv6.conf.all.ignore_routes_with_linkdown = 0 > net.ipv6.conf.default.ignore_routes_with_linkdown = 0 > net.ipv6.conf.lo.ignore_routes_with_linkdown = 0 > ... > > When the above sysctls are set, not only will link status be reported to > userspace, but an indication that a nexthop is dead and will not be used > is also reported. > > 1000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium > 1000::/8 via 8000::2 dev p8p1 metric 1024 pref medium > 7000::/8 dev p7p1 proto kernel metric 256 dead linkdown pref medium > 8000::/8 dev p8p1 proto kernel metric 256 pref medium > 9000::/8 via 8000::2 dev p8p1 metric 2048 pref medium > 9000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium > fe80::/64 dev p7p1 proto kernel metric 256 dead linkdown pref medium > fe80::/64 dev p8p1 proto kernel metric 256 pref medium > > This also adds devconf support and notification when sysctl values > change. > > v2: drop use of rt6i_nhflags since it is not needed right now > > Signed-off-by: Andy Gospodarek <[email protected]> > Signed-off-by: Dinesh Dutt <[email protected]> Applied. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
