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Method and apparatus for providing mobile IP service through a network address translation gateway

  • US 9,787,526 B2
  • Filed: 06/17/2014
  • Issued: 10/10/2017
  • Est. Priority Date: 07/26/2006
  • Status: Expired due to Fees
First Claim
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1. Apparatus for providing a gateway between a local area network and a wide area network, comprising:

  • a network address translation module;

    a foreign agent module configured to advertise a care-of address on the local area network via an agent advertisement message and to process mobile internet protocol (IP) registration traffic and mobile IP communication traffic for a mobile device associated with the care-of address on the local area network and the wide area network; and

    a control module configured to identify the mobile IP registration traffic and the mobile IP communication traffic to omit processing thereof by the network address translation module, the identification classifying the mobile IP registration traffic and the mobile IP communication traffic for processing by the foreign agent module and not by the network address translation module, wherein the control module is further configured to classify traffic other than the mobile IP registration traffic and the mobile IP communication traffic for processing by the network address translation module and not by the foreign agent module, wherein the classifying of the mobile IP communication traffic for processing by the foreign agent is based on a home IP address of the mobile device.

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