Patent ID: 8503396

Claim:
A network apparatus comprising: a data storage to store a layer 2 (L2) bridge forwarding table; and a processor to configure the L2 bridge forwarding table, wherein when a client is determined to be moving from a subnet associated with a first network element to a subnet associated with the network apparatus, evaluating a source Internet Protocol (IP) address within a Layer 3 (L3) header in a first frame to determine if the client is roaming, and when the client is determined to be roaming, the processor is to configure the L2 bridge forwarding table to include a source Medium Access Control (MAC) address of the client together with information identifying an interface for use in directing client data traffic back towards the subnet associated with the first network element, wherein an encapsulation tunnel is associated with the first network element and the network apparatus prior to the client moving from the subnet associated with the first network.