Method of preventing syn flood and router equipment

Method of preventing syn flood and router equipment

  • CN 101,163,041 B
  • Filed: 08/17/2007
  • Issued: 10/16/2013
  • Est. Priority Date: 08/17/2007
  • Status: Active Grant
First Claim
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1. a preventing syn flood method when setting up the TCP connection is characterized in that, arranges and acts on behalf of waterline and attack waterline;

  • Surpass when acting on behalf of waterline when partly linking number, on router device, replace server to carry out the TCP establishment of connection with router, set up and replace again client computer to initiate TCP to server after TCP connects connecting;

    Increase to when attacking waterline when partly linking number, after receiving a syn message, half link that life period is the longest is worn out, and shorten the overtime re-transmission time, release the waterline number until will partly link number, then reenter normal mode of operation.

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