static default vs bgp default

Anand Buddhdev anandb at ripe.net
Fri Feb 5 13:09:49 CET 2016


On 05/02/16 12:49, Maximilian Wilhelm wrote:

>> # birdc6 show route ::/0
>> BIRD 1.4.5 ready.
>> ::/0               blackhole [dropall 11:19:29] ! (50)
> 
>> Is this a known bug? Or have I misconfigured something? What does the
>> exclamation mean?
> 
> It means that bird wasn't able to push the route into the kernel.
> There should be plenty of messages in syslog complainig about this.
> Does this give some clue?

Ah ha! I see in /var/log/messages:

bird6: Netlink: No such device

Thanks for the hint.

Some Google searches later, I've discovered that Linux doesn't allow
blackhole for IPv6 for some reason. I guess I will use "unreachable"
instead of "blackhole" then.

Regards,
Anand


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