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System, apparatus and method for establishing a secured communications link to form a virtual private network at a network protocol layer other than at which packets are filtered

  • US 7,496,097 B2
  • Filed: 11/12/2004
  • Issued: 02/24/2009
  • Est. Priority Date: 11/11/2003
  • Status: Active Grant
First Claim
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1. A method for securing communications with a remote client computing device by establishing a virtual private network, comprising:

  • generating packet traffic with a communication application running on a client computing device;

    identifying at said client computing device target packet traffic of said packet traffic that is addressed to a target server;

    forming a secure communications link between a pseudo server module on said computing device and said target server;

    directing additional packet traffic addressed to said target server to said pseudo server module;

    sending an acknowledgment to said communication application upon receipt of said additional packet traffic rerouted to said pseudo server module; and

    routing a payload of said additional paket traffic to said target server.

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