I think it is safe to say that more mail on NANOG saying people should neighbor filter will not solve this problem. Lets work on things that will.
Not in itself as there are people who don't care, don't read NANOG, and/or don't listen, and/or are hard of understanding. But people insisting that peers filter their customers, using whether or not they filter as a selection criterion (i.e. how vulnerable they are to one of their own customers), and insisting their downstreams filter, would be a good start. Without pointing specific fingers there are some quite large AS's, who have peering with some large networks with no or little peer to peer filtering, who also demonstrably have no customer filtering. This means the peer gets polluted. Obviously either peer to peer or customer filtering solves this one. But filtering *is* a good thing, and it is important people exert pressure to make it happen. I don't think you can replace *filtering* by origin verification. Sure, the more belts and braces the better. -- Alex Bligh GX Networks (formerly Xara Networks)