Mobile Networks are emerging in the real world in various scenarios, from networks in public transportation to personal networks in consumer electronics. The NEMO BS protocol provides constant network connectivity and reachability for the nodes of these Mobile Networks in a seamless manner despite their roaming. However, NEMO BS has yet to show its advantages in real world deployment because it lacks trouble-free and secure network access for the whole network, and secure data transmission for the nodes it provides connectivity for. On the other hand, Access Networks provide connectivity for Mobile Networks, but currently lack a robust AAA service which would enable network mobility support in a fast, trouble-free, but also secure and authenticated manner. Our paper describes a collaborative Unified Architecture that satisfies the requirements of both Mobile Networks and Access Networks, and our evaluation proves its efficiency and applicability for real world deployment in today’s Internet infrastructure.