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Method, system and apparatus to support mobile IP version 6 services

  • US 7,934,094 B2
  • Filed: 06/15/2004
  • Issued: 04/26/2011
  • Est. Priority Date: 06/18/2003
  • Status: Active Grant
First Claim
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1. A method of authentication and authorization support for Mobile IP version 6 (MIPv6), comprising the steps of:

  • encrypting Extensible Authentication Protocol (EAP) authentication and authorization information in a mobile device operating in a visited network;

    sending the encrypted EAP authentication and authorization information from the mobile device to a pass-through visited Authentication, Authorization, and Accounting (AAA) client in the visited network utilizing a protocol for carrying authentication information for network access;

    forwarding the encrypted EAP authentication and authorization information from the pass-through visited AAA client to a pass-through visited AAA server in the visited network;

    forwarding the encrypted EAP authentication and authorization information from the pass-through visited AAA server in the visited network to a home AAA server in the mobile device'"'"'s home network;

    performing an analysis of the encrypted EAP authentication and authorization information by the home AAA server;

    sending a MIPv6-related challenge message from the home AAA server to the mobile device via the pass-through visited AAA server and the pass-through visited AAA client in the visited network based on the analysis of the encrypted EAP authentication and authorization information;

    sending a MIPv6-related challenge response message from the mobile device to the home AAA server via the pass-through visited AAA client and the pass-through visited AAA server in the visited network;

    performing an analysis of the challenge response message contents by the home AAA server; and

    sending a MIPv6-related authentication and authorization results message from the home AAA server to the mobile device reporting a result of the analysis of the challenge response message contents and providing session parameter information;

    wherein the pass-through visited AAA client and the pass-through visited AAA server forward all messages in a pass-through manner in which information within Type and Type-Data fields after EAP layer headers is not examined by the pass-through visited AAA client and the pass-through visited AAA server;

    whereby prior EAP encryption is applied between the mobile device and the home AAA server.

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