Patent ID: 7136389

Claim:
A network system for supporting mobile Internet communication comprising: a plurality of Access Routers (ARs); a plurality of Mobile Nodes (MNs) being movable to various locations to communicate with the Internet via different ARs at different locations; each AR having a unique Internet Protocol (IP) address and a geographic access range in which the AR communicates data to the MNs; each MN is associated with a home AR; each AR having an associated Node Location Table (NLT) identifying each MN for which the AR is the home AR and the IP address of an AR corresponding to a current location of each such MN; and each MN is movable outside the access range of its home AR to a location within the access range of a selected one of any of the other ARs to receive data via the selected AR by communicating to its home AR the IP address of the selected AR as its current location whereby a data communication from a corresponding node (CN) to a selected MN is communicated to the selected MN by directing a query to the IP address of the selected MN's home AR, receiving the IP address of the current location of the selected MN from the NLT of the selected MN's home AR and directing the data communication to the received IP address.