In order to provide fast handover, lots of micro-mobility protocols have been designed and proposed. However, they may cause excessive signal traffic and long latency for handover management. This paper proposes a new routing algorithm for micro-mobility scheme using core node. Core node handles routing information for a mobile host. It does not to generate unnecessary control messages at each base station and wired node. We have conducted distribution of traffic as messages which create at old BS and then is disappeared at core node for maintenance of routing table. We have evaluated the performance of our micro-mobility scheme through a series of simulations using the Network Simulator 2 (ns-2).