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Method and system for packet-level routing

  • US 20030231632A1
  • Filed: 06/06/2003
  • Published: 12/18/2003
  • Est. Priority Date: 06/13/2002
  • Status: Abandoned Application
First Claim
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1. A method for packet-level routing in a computer system connected to a communications network having a data link layer and a network layer, the computer system having an operating system kernel providing a first interface for sending data packets to and retrieving them from the data link layer, a second interface for sending data packets to and retrieving them from the network layer, and filtering means for controlling transportation of data packets to and from the network layer, the method comprising the steps of:

  • receiving an incoming data packet from the first interface arriving from the communications network;

    treating the incoming data packet according to a particular routing protocol implemented in a routing unit formed outside the operating system kernel; and

    sending the incoming data packet to the second interface to be forwarded to an application program running on the computer system.

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