A downstream customer of ours is under a systemic DoS attack. Spoofed ICMP is headed for 207.99.73.206 at this time. If any of your Northern American Network Operators (read, NSPs) could possibly do whatever it is you do to attempt to track this down, NAC would be most appreciative. NAC Office: 973.366.3000 Alex @ home : 973.366.9001 Thanks.