Patent ID: 7471661

Claim:
In a first access point, a method of supporting mobility for a node that does not support Mobile IP, comprising: receiving access point information from a second access point; storing the access point information received from the second access point such that a list of active access points is updated to include the access point information received from the second access point, the list of active access points including access point information associated with one or more active access points, the access point information received from the second access point including information identifying an access point subnet and a gateway associated with the second access point; and sending the access point information received from the second access point to a third access point that supports Mobile IP to notify the third access point that the second access point is an active access point, thereby enabling the third access point to compare a received data packet with the access point subnet to determine whether to send a registration request on behalf of the node using the gateway as the node's Home Agent.