Performance Evaluation and Comparison of On Demand Multicast Reactive Routing Protocols under Black Hole Attack in MANET

One main challenge in the design of routing protocols is their vulnerability to security attacks. This is mainly due to the wireless and dynamic nature of ad hoc networks. A black hole attack is a severe attack that can be easily employed against routing in mobile ad hoc networks. In this attack a malicious node advertises itself as having the shortest path to the node whose packets it wants to intercept thereby exploiting the proper functioning of the protocol. In this paper the performance of multicast on demand routing protocols such as Multicast Ad-hoc On Demand Distance Vector (MAODV) protocol and On Demand Multicast Routing Protocol (ODMRP) are evaluated and analyzed under black hole attack under different scenarios in terms of the performance metrics such as packet delivery ratio and end to end delay. The evaluation is done with network simulator NS-2. Simulation results indicate that both the protocols suffer a significant reduction in packet delivery ratio in the presence of black hole attackers but the impact is more in ODMRP when compared to MAODV.