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Mobile IPv6 has been developed for quite a few years now, but it has yet to bring its constant connectivity and global reachability benefits to mobile devices in real world scenarios, mainly due to lack of trouble-free and secure network access and data transmission for devices as they roam. In this paper, the authors propose a Unified Architecture that combines the strengths of Mobile IPv6 and AAA services and closes the gap between the Mobile Node and the Access Network's requirements. Their approach provides a comprehensive solution in a setting where users require seamless roaming, secure network access and secure data transmission in a dynamic fashion as they commute, whereas Access Networks require powerful AAA services without compromising their security policies.
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