In message <17427469.1023807505@LTP012682.kpnqwest.com>, Kurt Erik Lindqvist wr ites:
RADB are a routing registry not an address space registry. Consult ARIN, APNIC, RIPE, etc for IP space ownership details. Any RADB member can register pretty much any route/AS pair and many members don't bother to put real details when it comes to owner of the route, etc (putting the ISP instead of the customer).
Yes, and this is my point. There is one route with two different sources AS:es...
Shit happens.
Now, if I where to try and filter on this, I would have a problem....and after all, one of the advantages of a routing registry is that you can filter from it...
Mirror the information that is relevant to you, and create an exception database. Merge those two, and create your filters from there. Then you can start bugging your peers to update their information. - marcel