Authentication, authorization and accounting within an access network using Mobile IPv6 and Diameter

The large expansion of Internet requires a change of hierarchy, future users will be more mobile than today users and information that previously were static will become dynamic. To ensure further growth of Internet the development of a scalable Authentication, Authorization, Accounting (AAA) infrastructure is critical since AAA is a prerequisite for those who want to create new services. Diameter is proposed to be the next generation Internet AAA infrastructure and is currently under development by the Internet Engineering Task Force (IETF) AAA working group. This thesis aims to give an insight into issues that arises when trying to combine Mobile IP version 6 (MIPv6) access networks with Diameter. As an initial part the thesis will provide the reader with fundamental information covering IP version 6 (IPv6), Mobile IPv6, AAA fundamentals and Diameter. The investigation was performed through extensive literature studies, design cases and a lightweight test implementation. The thesis shows that it is possible to combine Mobile IP version 6 and Diameter. But in order to make the combination easier the structure of the IPv6 stack and the Mobile IPv6 extension has to be slightly redesigned. The thesis also shows how Authentication can be performed without adding severe delay to the handover in an controlled access network.Validerat; 20101217 (root