168.0.0.0/6

Randy Bush randy at psg.com
Tue Feb 24 23:04:59 UTC 2004


>>> BGP routing table entry for 168.0.0.0/6, version 7688303
>>> ...
>>>   3277 13062 20485 20485 20485 8437 3303
>>>     194.85.4.249 from 194.85.4.249 (194.85.4.249)
>>>       Origin IGP, localpref 100, valid, external, best
>>> 
>>> ripe is being overgenerous to the swiss!
>> 
>> Not so. They are pretending to be over-endowed to some peers
>> only.
> 
> Not so, as has been re-re-re-hashed, 3303 is sending bogon 
> feeds to some parties [presumably their customers] and those 
> are getting regurgitated to route-views.  route-views is a 
> varied slice of different kinds of announcement sets (full 
> tables, partial, internal deaggs, ect etc); looking-glass 
> comparison shopping is the only way to get meaningful data.

the problem is that those getting the over-reaching data have
a view of the internet which can cause them and some destinations
problems.  this is very analogous to seeing 0/0 with a six hop
path in route-views, as you say, we don't really know the reach
of the bad data.

randy




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