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Method and apparatus for anonymous IP datagram exchange using dynamic network address translation

  • US 8,549,285 B2
  • Filed: 06/14/2010
  • Issued: 10/01/2013
  • Est. Priority Date: 03/21/2001
  • Status: Expired due to Term
First Claim
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1. A method comprising:

  • receiving a datagram at a network device, the datagram having a first header;

    determining, by the network device, a next-hop network element to which the datagram will be forwarded;

    determining, by the network device, a unique next-hop identifier in accordance with a next-hop address associated with the next-hop network element;

    generating, by the network device, a broadcast address in accordance with the next-hop address;

    including, by the network device, the unique next-hop identifier in the first header;

    encrypting, by the network device, a plurality of identifying portions of the first header, including the unique next hop identifier;

    encapsulating, by the network device, the datagram with a second header whose address is set to the broadcast address; and

    transmitting, by the network device, the datagram according to the broadcast address.

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