Intrusion Detection in MANET for Network Layer

Abstract

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Mobile Ad Hoc Networks (MANETs) has become a major next generation wireless networking technology. MANETs are vulnerable to attacks in network layer. MANETs are infrastructure-less network in which the topology is constantly changing which makes it easy for the intruders to attack. Security is always an important issue especially for the case of Mobile Ad Hoc Network (MANET) because the structure of the network makes it an easy target for attackers. The inherently vulnerable characteristics of wireless ad hoc networks make them susceptible to attacks, and it may be too late before any counter action can take effect. It can also be observed that each type of attack affects the network characteristics and behavior differently. So we need to study all the types of attack and then we study the intrusion detection and protection mechanism. Intrusion Detection Systems (IDSs) can monitor audit data, look for intrusions to the system, and initiate a proper response.