×

Method for secure packet-based communication between two units via an intermedia unit

  • US 20040037284A1
  • Filed: 09/08/2003
  • Published: 02/26/2004
  • Est. Priority Date: 11/08/2000
  • Status: Abandoned Application
First Claim
Patent Images

1. A method for packet based data communication between a first unit (1) and a second unit (3), wherein said first unit (1) communicate via an intermediate unit (2), each unit being identified by at least one address, comprising the steps of:

  • retrieving, at said first unit (1), from said intermediate unit (2) an address of said at least one address identifying said intermediate unit;

    using said retrieved address as source address when forming a first data packet in said first unit (1);

    sending said first data packet from said first unit (1) to said intermediate unit (2); and

    forwarding said first data packet from said intermediate unit to said second unit using said retrieved address, wherein the step of sending said first data packet from said first unit (1) to said intermediate unit (2) comprises the sub-steps of;

    encapsulating, at said first unit (1), said first data packet into a new data packet having one of said at least one address identifying said first unit as source address;

    sending said new data packet from said first unit (1) to said intermediate unit (2); and

    decapsulating, at said intermediate unit (2), said new data packet in order to obtain said first data packet in original form.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×