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Method and apparatus for providing node security in a router of a packet network

  • US 20030074582A1
  • Filed: 10/12/2001
  • Published: 04/17/2003
  • Est. Priority Date: 10/12/2001
  • Status: Active Grant
First Claim
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1. A method for providing node security in a router of a packet network, comprising the steps of:

  • monitoring a data packet sent from an originator via the router and addressed to a destination device other than the router;

    determining in the router whether the data packet is potentially harmful to the destination device;

    interrupting transmission of the data packet in response to determining that the data packet is potentially harmful to the destination device, comprising the step of communicating with a second router to cause the second router to interrupt transmission of a future data packet; and

    transmitting the data packet in response to determining that the data packet is not potentially harmful to the destination device.

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