Proxy Mobile ip routing

A mobile node is attached to a first Proxy Mobile Agent, optimization path between the mobile node and the replying node via the first Proxy Mobile Agent is established that. When the mobile node is attached to a second Proxy Mobile Agent after the said mobile node is no longer attached to the first Proxy Mobile Agent is determined. A result of the determination, the request to cancel the route optimization is sent to the responding node from said first Proxy Mobile Agent. In one embodiment, packets from the responding node is bi-cast from the Proxy Mobile Agent in the Home Agent and the Mobile Node. The proxy mobile agent, if packets from the home agent is not returned, it is determined that the mobile node is no longer included. .Field