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In this paper we present a performance analysis of a recently proposed method flow-based fast handover method for mobile IPv6 (FFHMIPv6) in a real mobile IPv6 environment. The FFHMIPv6 uses the flow-state information and encapsulation to reduce the packet loss during the location update processes of mobile IPv6. In the experiments, the FFHMIPv6 handover is compared with the mobile IPv6 handover using the MIPL-based (mobile IPv6 for Linux) real network scenario. The effect of the distance of the nodes MN is communicating with, VoIP traffic and the processing delay caused by the FFHMIPv6 method are considered in the experiments. Also, some security aspects of the method have been considered. The FFHMIPv6 method has been found to be an efficient and a simple way to reduce the handover delay.