期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2014
卷号：2
期号：12
出版社：S&S Publications
摘要：Mobile Adhoc Network is an autonomous network used to form by create the nodes and establish the wireless connections dynamically, so that messages in that packets are going to sent from a sender to receiver. A number of routing protocols like Ad Hoc On-Demand Distance Vector Routing (AODV), Dynamic Source Routing (DSR), Destination-Sequenced Distance-Vector (DSDV) and Temporally Ordered Routing Algorithm (TORA) have been used. AODV is a prominent on-demand reactive routing protocol for mobile ad hoc networks. But in existing AODV, there is no security to against a well-known "Black Hole" attack. Black hole nodes are those malicious nodes that agree to forward packet to destination but do not forward packet intentionally. These black hole nodes activate in the network and degrade its performance. A watchdog mechanism is used to detect the blackhole nodes in a MANET. This method first detects a black hole attack and then gives a new route bypassing this node.Also in manet we activate the watchdog to improves its throughput and packet delivery ratio. We discuss the security attacks and two popular security techniques, Intrusion Detection System (IDS) and Watchdog and Path rater (WPR). The two techniques are evaluated using two measures, viz., Availability Factor (AF) and Integrity Factor(IF).We did simulations based security evaluation and intrusion prevention using the watchdog module based on above paramaters.Research is on going and also to indicate the possibilities to extend that.
关键词：AODV; Blackhole; MANET;Intrusion detection and prevention
