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Architecture for virtual private networks

  • US 20060129792A1
  • Filed: 12/30/2005
  • Published: 06/15/2006
  • Est. Priority Date: 06/12/1997
  • Status: Active Grant
First Claim
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1. A method for sending a data packet from a source in a local area network (LAN) to a destination outside the LAN comprising the steps of:

  • receiving a data packet enroute from the source in the LAN to the destination;

    determining if the source in the LAN and the destination are members of a virtual private network, and if so;

    determining an encryption algorithm for messages sent between members of the virtual private network by accessing a portion of a memory that maintains information identifying various encryption algorithms to be utilized for data packets sent between members of various virtual private networks;

    determining a compression algorithm for messages sent between members of the virtual private network by accessing a portion of the memory that maintains information identifying various compression algorithms to be utilized for data packets sent between members of the various virtual private networks;

    executing the determined encryption algorithm on at least a payload portion of the data packet;

    executing the determined compression algorithm on at least the payload portion of the data packet; and

    forwarding the encrypted and compressed data packet to the destination outside the LAN.

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