Patent ID: 7778229
Filing Date: 2010-08-17
Classification: H04L,H04W

Abstract:
1. In a Mobile Node supporting Mobile IP, a method of registering with a Home Agent, comprising: obtaining a collocated care-of address, the collocated care-of address being a local IP address associated with a network to which the Mobile Node has roamed; composing a registration request message including the collocated care-of address, a home address associated with the Mobile Node, and an address associated with a server that allocated the local IP address, wherein the server is not the Home Agent, and wherein the server is not the Mobile Node; sending the registration request message to a Home Agent, thereby enabling the Home Agent to initiate a release of the local IP address by the server when the local IP address is no longer being used by the Mobile Node, wherein upon release of the local IP address, the local IP address is available for use by other entities; and receiving a registration reply from the Home Agent.