A Wireless Mobile Adhoc network (MANET) is a self-controlled group of multiple nodes establishing a temporary network. MANET nodes have the tendency to change the location from one point to another due to it’s vulnerable and dynamic nature topography, which may invite for several types of cyber-attacks. One of the most dangerous attack is wormhole attack in which two or more malicious nodes could establish a tunnel between them and attract all the neighbours to send the packets though that tunnel by assuring that packet would be delivered to destination through the tunnel’s optimal-route and also assure to deliver all the packets by taking small amount of time delay. Most of the proposed methods to guard against wormhole attack use either clock synchronization or round-trip time technique but our proposed method uses hop-to-hop count technique. The purpose of this research work is to make a solution to detect the most risky and dangerous wormhole attack in the context of mobile Adhoc networks that can drift the normal traffic flow completely. We named this solution as Detection of Collaborative Wormhole Attack in Wireless Mobile Adhoc Network (DC-WAN). An attempt has been done to make an Algorithm to detect Wormhole malicious node(s) based on reactive Adhoc on demand distance vector (AODV) protocol. Several times experiments were conducted on our solution by using NS2 and found that the PDR and Throughput is similar to AODV protocol but the Packet Drop Ratio is fluctuating as time changes.

MANET, Cyber attacks, Wormhole attack, AODV, hop-to-hop count

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