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A Study of Behaviour And Performance Analysis Of Wormhole Attack In Mobile Ad-Hoc Networks

Karthik Pai B.H, Dr.Nagesh H.R, Dr.Niranjan N.Chiplunkar, Sharath Kumar

The recent developments in the wireless technology and their wide-spread utilization have made remarkable enhancements in productivity in the corporate and industrial sectors. However, these recent developments have also introduced new security threats. Since the wireless shared medium is completely exposed to outsiders, it is susceptible to attacks that could target any of the OSI layers in the network stack. Wormhole attack is one of the most common DoS attacks in MANET. During the wormhole attack, a malicious node captures packets from one location in the network, and “tunnels” them to another malicious node at a different point (where other attacker is located), which replays them locally. In the wormhole attack, malicious nodes do not take part in finding routes, meaning that, legitimate nodes do not know their existence. AODV is an one of the well known on demand reactive routing protocol and it has been chosen for implementation of this attack for mobile ad hoc networks. Due to this malicious behaviour introduced by the malicious nodes all the data packets are not delivered to the destination under attacking scenario.