In this paper, we presented experimental results of the Eduroam system that adopts DHT as a lookup service. The proposed system is scalable and self-configurable. We also evaluated fault-tolerance of the system. In the proposed system, the RADIUS servers run on DHT substrate and they form a DHT-based RADIUS network. A RADIUS server manages a single domain.
The proposed system should have a stable node which plays as a role of a gateway which will be used while new
nodes join the system. When a new node wants to join, it requires connecting to one available node in the system. The proposed system has to face the problem of handling routing function when there are a huge number of nodes leaving the system.