Patent ID: 6978128
Filing Date: 2005-12-20
Classification: H04L,H04W

Abstract:
1. A method of transmitting data between a mobile node and a home agent for the mobile node, the mobile node having an associated authentication server, the method comprising: establishing a first communication between a first packet data serving node (PDSN) and the mobile node located in a first network; determining at a proxy server an address of the authentication server; contacting the authentication server and, responsively, receiving information from which an address of the home agent for the mobile node may be determined; determining the address of the home agent using the information received from the authentication server; sending the address of the home agent from the proxy server to the first PDSN; sending, from the authentication server to the proxy server, a methodology for determining a home address for the mobile node; using, at the proxy server, the methodology to determine the home address for the mobile node; sending the home address for the mobile node from the proxy server to the first PDSN; sending, from the first PDSN to the home agent at the address of the home agent, a first registration request message for establishing a first registration between the first PDSN and the home agent; routing the data from the mobile node to the home agent via the first PDSN.