Implementation of Diameter Protocol for securing Network Elements in back-haul network

There has been a continuous growth in volume of data in the back-haul network. In future, there will be much more signaling complexity in the network. Provisioning of security to signal storms in such a complex network is a critical issue. There can be several attacks such as replay attack, which can compromise the security of signals in the network as well as the Network Elements (NEs) providing crucial functions and applications. Diameter, which is AAA protocol, can be applied to the Network Elements deployed in the back-haul network to secure Network Elements themselves as well as to guarantee that the data provided to the subscribers to the applications provided by Network Elements is protected against security attacks. This paper presents an implementation of Diameter protocol in GNS3 Simulator using UNIX platform. It supports topology hiding and controls unauthorized access of NEs, thus providing security to NEs in the back-haul network.