We got hit by some guys from Poland (which made them uncontactable by phone).
Try this:
* Continue to advertise your /16s * Advertise more specifics of only the routes from the closest AS to the trouble. Ensure they also filter the bad routes as do all the AS's between that and the customer. * If anyone filters the more specifics, you will be *fine* as they will also be filtering the bogon more-specifics, but will still hear your /16s.
Ah, true :) I knew there was a reason we were fine just announcing matching more specifics.
* Take the AS path to the bogon route. Complain to those in the AS path in reverse order, till you get to someone default free. You might also want to enlist the help of your upstream.
Alex Bligh Xara Networks
Avi