Can somebody who is responsible on blocking IP's on "unknown.level3.net" ports contact me off-list ? I have a DDOS attack against one of my customers from a customer of level3. --jan -- Jan Czmok, Network Engineering & Support, Global Access Telecomm, Inc. Ph.: +49 69 299896-35 - fax: +49 69 299896-40 - sip:13129*522@inoc-dba.pch.net