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Systems and methods for point of ingress traceback of a network attack

  • US 7,200,105 B1
  • Filed: 01/11/2002
  • Issued: 04/03/2007
  • Est. Priority Date: 01/12/2001
  • Status: Expired due to Fees
First Claim
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1. A method, comprising:

  • receiving packets at the node;

    computing one or more signatures for each of the received packets;

    aggregating the computed one or more signatures in a first memory to produce one or more signature vectors, wherein the computed one or more signatures are aggregated over a collection interval R;

    archiving the one or more signature vectors in a second memory;

    providing the archived one or more signature vectors to an agent for determining a point of ingress for the packet when it entered a network; and

    randomly zeroing out a fraction of the one or more signature vectors that are older than P seconds.

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