Patent ID: 7319689

Claim:
A method for maintaining a communication session in which data is exchanged between a first mobile host connected to a first attachment point an infrastructure-based network and at least a second mobile host connected to a second attachment point in the network as the first mobile host moves from said first attachment point to a third attachment point and the second mobile host moves from said second attachment point to a fourth attachment point comprising the steps of: sending a binding update from the first mobile host to a first stationary location proxy associated with said first mobile host; sending a list of all hosts in communication with the first mobile host and the binding update from the first mobile host to a first stationary binding update proxy associated with the first mobile host; sending a binding update from the second mobile host to a second stationary location proxy associated with said second mobile host; sending a list of all hosts in communication with the second mobile host and the binding update from the second mobile host to a second stationary binding update proxy associated with the second mobile host; obtaining the IP address of the first and second mobile hosts at the stationary binding update proxy of each from the stationary location proxy of the other mobile host.