Bird6 and static blackhole

[Ondrej Zajicek]

On Wed, Feb 23, 2011 at 11:35:20AM +0100, Giuseppe Ravasio wrote:
> it seems that linux doesn't allow to set blackhole ipv6 routes without  
> specifing the device:
> root@:~# ip -f inet6 route add blackhole 2a01:9c01::/32
> RTNETLINK answers: No such device
>
> if I append dev lo the route inserts without problems.
>
> This error does not happen with reject and so
>
> protocol static {
>         route 2a01:9c01::/32 reject;
> }
>
> works like a charm.

I checked that (but on older kernel, 2.6.23.16) and it seems that
blackhole and prohibit targets are not implemented for IPv6. They
requires a device, but when the loop device is specified, the same
unreachable route is created.

I will check that on a newer kernel. What results did you have when you
created blackhole route with a device?

If it is not really working, the easiest workaround would be to just
use reject route.

-- 
Elen sila lumenn' omentielvo

Ondrej 'SanTiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 197 bytes
Desc: Digital signature
URL: <http://trubka.network.cz/pipermail/bird-users/attachments/20110224/e60e4c56/attachment-0001.asc>