A Mechanism for Uncovering & Anticipation of Gray Hole Attack in MANET

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Onkar V. Chandure
Prof. V. T. Gaikwad


A mobile ad-hoc network (MANET) is a wireless network in which nodes can generate new routing messages to advertise non-existent links, provide incorrect link state information, and flood formed without any central administration which consists of mobile nodes that use a wireless interface to send packet data. Uncovering & Anticipation of malicious attacks in networking is an important and challenging security issue in mobile ad hoc networks (MANETs).In the presence of malicious nodes, one of the main challenges in MANET is to design the robust security solution that can protect MANET from various routing attacks. Ad hoc networking is a concept of computer communication, in which each nodes participating in network acts as host and router so as to forward packets for other nodes. A Gray hole is a node that selectively drops and forwards data packets after advertises itself as having the shortest path to the destination node in response to a route request message. Our mechanism helps to protect the network by detecting and reacting to malicious activities of any node. Simulation will be carried out by using network simulator tool so as to address the problem of uncovering & anticipation of gray hole attack in mobile ad-hoc network.

Index Terms: MANET Security, Gray Hole, ns-2, AODV, Routing Behavior, Packet forwarding misbehavior


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