A Distributed Cooperative Approach to Detect Gray Hole Attack in MANETs
Bobby Sharma · 2015
Due to intrinsic properties of Mobile Ad hoc Network (MANETs) such as openness, infrastructure less network, dynamic topology, mobility of nodes, lack of centralized monitoring system, lack of secure routing protocol etc., it always suffers from different kind of attacks. There is no clear line of defense to resists the malicious nodes from its route. Moreover, nodes communicate to each other on hop-by-hop fashion. That helps the intruders to sit in between and deliberately disrupt the communication. That degrades the network performance in different levels. This paper contains a distributed cooperative approach to detect a network layered active attack known as gray hole attack. Efficiency of the detection methodology has been shown in terms of detection rate and throughput of the network