Patent ID: 9288658
Filing Date: 2016-03-15
CPC Classification: H04L,H04W

Claim Text:
1. A method for re-directing a mobile node to a first home agent, which was selected when the mobile node initially attached to an access system supporting network-based mobility, the method comprising: transmitting from the mobile node, which is attached to the access system supporting network-based mobility and for which the first home agent was selected, to a second home agent an Internet Key Exchange (IKEv2) request message to establish a security association with the second home agent when the mobile node switches from the access system supporting network-based mobility to attach to an access system supporting client-based mobility, the IKEv2 request message including an identifier of the mobile node; receiving from the second home agent and by the mobile node an IKEv2 response message, the IKEv2 response message including redirect information containing one of an IP address of the first home agent and hints, the hints including at least one of an address prefix and a domain name and allowing the mobile node to derive a valid address for the first home agent, the valid address including one of an anycast group address, a multicast group address, and a unicast address; initiating, at the mobile node that is attached to the access system supporting client-based mobility, establishment of a new security association with the first home agent, to which the mobile node is re-directed; transmitting from the mobile node a Mobile IP (MIPv6) Binding Update for registering a new care-of address (CoA) with the first home agent; and receiving, by the mobile node, a MIPv6 Binding Acknowledgement from the first home agent.