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Internet is getting more mobile and the service environment for users is getting more ubiquitous due to rapid development in the wireless network technology. Besides, as for MNN (Mobile Network Node: like vehicle, train, airplane, ship, etc.), telecommunication devices which intend to receive various and high quality Internet services by accessing to Internet not only from fixed places but also under high speed movement are in a trend of getting increased. This paper reinforced security under the network evaluation of wire/wireless integration of PMIPv6-based NEMO. Moreover, fast handoff technique was also adopted to reduce handoff delay time in PMIPv6 and X-FPMIPv6 (eXtension of Fast Handoff for PMIPv6) was used to support global mobility. In addition, AX-FPMIPv6 (Authentication eXtension of Fast Handoff for PMIPv6) is proposed which integrated SK-L2AM and X-FPMIPv6 by applying Piggybacks method to reduce the overhead of authentication and signaling. Our proposed scheme shows better performance than the existing schemes in authentication and handoff delay.