On Wed, Feb 03, 2010 at 03:02:16PM +1100, Rod Whitworth wrote:
> I sometimes see a bgpd message in /var/log/messages saying:
> /bsd: cannot forward from :: to 2zzz:z000::0005 nxt 17 received on vr2
> (I snipped the datestamp and hostname to stop linewrap)
>
> It is not common and nothing bad seems to be happening but I'm puzzled
> as to what it means.
>
> Any clues?
>
This is not from bgpd. It is from the kernel to be precise ip6_forward.c:
* Do not forward packets with unspecified source. It was discussed
* in July 2000, on ipngwg mailing list.
Someone is sending packets with a src ip of :: (all null address). This is
not allowed. You should try to figure out which host on vr2 is doing this
crap.
--
:wq Claudio
