Patent ID: 7447188
Filing Date: 2008-11-04
Classification: H04L,H04W

Abstract:
1. In a network device supporting Mobile Internet Protocol (Mobile IP), the network device having a plurality of interfaces supporting a plurality of virtual local area network(s) (VLAN or VLANs), a method of performing proxy registration on behalf of a node, the method comprising: ascertaining a subnet map of the node, the subnet map corresponding to one of the plurality of VLANs; identifying a Home Agent associated with the subnet map or the VLAN via which to register the node; composing a registration request on behalf of the node, the registration request identifying the node and including a Home Agent address associated with the Home Agent, the registration request indicating one of the plurality of interfaces corresponding to the one of the plurality of VLANs via which data packets are to be routed; sending the registration request on behalf of the node; and receiving a registration reply that indicates success or failure of the proxy registration performed on behalf of the node, wherein the node does not support Mobile IP.