Malicious node analysis in MANETS

The mobile ad hoc networks (MANETS) are decentralized, multi-hop networks in which the intermediate nodes play an role of routers to pass data packets to destination. The Routing protocols are playing very vital role in effectiveness of MANETS due to mobility and dynamically changing of topology. Due to the nature of broadcast wireless medium and not have central control now many routing protocols are vulnerable to attacks. These attacks are black hole attack, greyhole attack, sinkhole attack, byzantine attack, sleep deprivation attack and wormhole attack. The paper is discussing all these attacks. From these routing protocols, one of protocol is ad hoc on-demand distance vector routing (AODV). It is a very trendy routing protocol and it is very susceptible to black hole attacks. In black hole attack a mobile node mistakenly publicize the route and sinks data packets to incorrect destination instead of sending to accurate destination. It analyzes the related work and position a solution based on analysis.