Defending Against Collaborative Attacks by Malicious Nodes in MANETs: A Cooperative Bait Detection Approach

Wireless networks are computer networks that are not connected by cables of any kind. The use of wireless network enables enterprises to avoid the costly process of introducing cables into buildings or as a connection between different equipment locations. Wireless networks are susceptible to many attacks. One such specific attack is a black hole attack in which malicious node falsely claiming itself as having the fresh and shortest path to the destination. Mobile Ad-hoc Networks (MANET) are used for communication among Mobiles and roadside equipment’s. MANET, is a form of Mobile ad-hoc network, to provide communications among nearby Mobiles and between Mobiles and nearby fixed equipment, usually described as roadside equipment. Each Mobile equipped with MANET device will be a node in the Ad-Hoc network and can receive and relay others messages through the wireless network This paper attempts to resolve this issue by designing a dynamic source routing (DSR)-based routing mechanism, which is referred to as the cooperative bait detection scheme (CBDS), that integrates the advantages of both proactive and reactive defense architectures. Our CBDS method implements a reverse tracing technique to help in achieving the stated goal. Proposed system helps us in defending against the black hole attack without any requirement of hardware and special detection node.