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Layering mobile and virtual private networks using dynamic IP address management

  • US 7,685,317 B2
  • Filed: 09/30/2002
  • Issued: 03/23/2010
  • Est. Priority Date: 09/30/2002
  • Status: Active Grant
First Claim
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1. A method comprising:

  • registering a mobile device with a home agent (HA);

    once the registering has occurred, receiving at the mobile device a home internet protocol (IP) address assignment from the HA;

    assigning the home IP address to the mobile device as an inner IP address;

    mapping the inner IP address to a physical point-of-attachment of the mobile device;

    assigning an outer IP address directly to the mobile device from the HA;

    tunneling of packets between the mobile device and the HA using the inner and outer IP address; and

    delivering packets to the mobile device at the point-of-attachment.

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