Detection and Isolation of Packet Dropping Attacker in MANETs
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International Journal of Advanced Computer Science and Applications(IJACSA) (2013)

Several approaches have been proposed for Intrusion Detection Systems (IDS) in Mobile Ad hoc Networks (MANETs). Due to lack of MANETs infrastructure and well defined perimeter MANETs are susceptible to a variety of attacker types. To develop a strong security mechanism it is necessary to understand how malicious nodes can attack the MANETs. A new IDS mechanism is presented based on End-to-End connection for securing Optimized Link State Routing (OLSR) routing protocol. This new mechanism is named as Detection and Isolation Packet Dropped Attackers in MANETs (DIPDAM). DIPDAM mechanism based on three ID messages Path Validation Message (PVM) , Attacker Finder Message (AFM) and Attacker Isolation Message (AIM). DIPDAM mechanism based on End-to-End (E2E) communication between the source and the destination is proposed. The simulation results showed that the proposed mechanism is able to detect any number of attackers while keeping a reasonably low overhead in terms of network traffic.
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