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AssigneeUTStarcom, Inc.
InventorsChandra Warrrier, Yingchun Xu
Estimating the term…
In mobile IP wireless data networking, methods are described for correctly routing packets through a foreign agent to or from wireless nodes where the wireless nodes have the same home network IP address. Instead of using normal IP routing, the foreign agent uniquely identifies the wireless node's home network IP address and home agent IP address with a PPP link address associated with a PPP link between the foreign agent and the wireless node. This association between PPP link addresses, home agent IP addresses, and home network IP addresses, is preferably implemented in software as a table stored in the foreign agent. The routing of packets through the foreign agent to the mobile nodes is performed by reference to the table. The table allows the foreign agent to correctly and efficiently route packets in the situation where multiple wireless nodes are registered with the foreign agent, but more than one of the wireless nodes have the same home network IP address.
A communication system for communicating with a plurality of mobile nodes in a communication system, the communication system having a plurality of home agents, the plurality of home agents managing multiple Internet Protocol (IP) address pools having overlapping IP addresses, each pool being associated with a unique home agent IP address, wherein a home IP address for a given mobile node is associated with one of the multiple pools, the system comprising:
A foreign agent for use in a communication system for communicating with a plurality of mobile nodes, wherein the communication system comprises a plurality of home agents, the plurality of home agents managing Internet Protocol (IP) addresses included in multiple address pools, the multiple address pools having one or more overlapping IP addresses and each pool being associated with a unique home agent IP address, the foreign agent comprising:
A foreign agent for routing a packet associated with a given mobile node, the foreign agent comprising:
Dependencies are inferred from the claim text.