Improving network security by dynamically changing path identifiers in future internet

Providing enhanced security is an important design objective of many future Internet architectures. In this paper, we propose a dynamic path identifier (D-PID) mechanism for a recently proposed future Internet architecture called CoLoR. The D-PID mechanism can efficiently enhance the security of the network by periodically changing the path identifiers (PIDs) between domains, which are used for inter-domain routing in CoLoR. We describe the D-PID mechanism in detail, and simulate it in OMnet++ to verify its effectiveness. Our evaluation results show that the extra network overhead caused by D-PID is controllable and trivial.