Patents Represented by Attorney, Agent or Law Firm Baniak Pime & Gannon
  • Network protection for denial of service attacks
    Patent number: 6725378
    Abstract: An active monitor detects and classifies messages transmitted on a network. In one form, the monitor includes a routine for classifying TCP packet source addresses as being of an acceptable, unacceptable, or suspect type. Suspect source addresses may be further processed in accordance with a state machine having a number of conditionally linked states including a good address state, a new address state, and a bad address state.
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: April 20, 2004
    Assignee: Purdue Research Foundation
    Inventors: Christoph L. Schuba, Ivan V. Krsul, Diego Zamboni, Eugene H. Spafford, Aurobindo M. Sundaram, Markus G. Kuhn