Forge a TCP RST packet to force a connection to terminate.
CyberCop Monitor by Network Associates, Inc. (http://www.nai.com)
RealSecure by Internet Security Systems (ISS) (http://www.iss.net)
NetRanger by WheelGroup/Cisco (http://www.wheelgroup.com)
eTrust Intrusion Detection by Computer Associates (http://www.cai.com)
NetProwler by Axent (http://www.axent.com)
Centrax by Cybersafe (http://www.cybersafe.com)
NFR by Network Flight Recorder (http://www.nfr.net)
Dragon by Security Wizards (http://www.network-defense.com)