Patent ID: 6992995

Claim:
A method for facilitating intra-domain mobility, said method comprising the steps of: providing a first network that includes a first agent including location information about a mobile node; providing a second network that includes two or more subnetworks and a second agent; and registering the mobile node with the second agent such that the mobile node transitions from any of the subnetworks to another subnetwork without communicating to the first agent information about the transition and without communicating to the second agent information about a security association between the mobile node and the first agent, and wherein the step of registering the mobile node with the second agent comprises the steps of: receiving at the mobile node, a local care-of address (LCOA) and a global care-of-address (GCOA); and registering the mobile node with the second agent, wherein the LCOA is used to forward a communication to the mobile node without determining a specific route to the mobile node.