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Mobile IP over VPN communication protocol

  • US 9,300,634 B2
  • Filed: 11/25/2013
  • Issued: 03/29/2016
  • Est. Priority Date: 11/15/2002
  • Status: Active Grant
First Claim
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1. A method for communicating with a correspondence node of a virtual private network associated with a home network, from a mobile node associated with a foreign network, the method comprising:

  • receiving an information packet from the mobile node via the foreign network at a security gateway of the virtual private network without using an external home agent, wherein the information packet has been encapsulated with an inner tunnel address corresponding to the security gateway and representative of a source address of at least a first portion of the information packet;

    forwarding the at least a first portion of the information packet from the security gateway to a home agent of the virtual private network;

    decapsulating, at the home agent, the at least a first portion of the information packet; and

    transmitting the decapsulated at least a first portion of the information packet from the home agent to the correspondence node.

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