80/udp floods?

I apologize for the potentially obvious question, but I've been through sf, google, etc and can't find anything. I have a customer that is currently getting several hundred thousand packets per second sent to them on 80/udp. /etc/services lists 80/udp as IANA assigned for http but I've never seen a udp implementation of http so I'm assuming it's a sneaky DOS/DDOS of some kind. ACL's seem to work to catch it but I'm curious if anyone has seen this specific attack (80/udp) before. Thanks -Scott -- Scott Call Router Geek, ATGi, home of $6.95 Prime Rib I make the world a better place, I boycott Wal-Mart VoIP incoming: +1 360-382-1814