Comparing Various Black Hole Attack Prevention Mechanisms

Abstract-- Mobile Ad-hoc Network is a temporary wireless network. It is a network which is self-configuring in which nodes moves freely and continuously. As a result the network topology also changes dynamically. Such networks are highly dynamic in nature and nodes communicate without a proper infrastructure. Various routing protocols employed by these nodes have various loopholes and hence vulnerable to attacks. One such attack is a BLACK HOLE ATTACK. A black hole attack in MANET is a malicious node that falsely replies for any route requests without having any active route to specified destination and drops all the packets received from other nodes. This Results in the degradation in overall packed delivery ratio and network performance. There have been various attempts to provide schemes to prevent black hole attack. This paper presents a comparative study of the different preventive mechanism available to cater the problem of BLACK HOLE ATTACK in Mobile Adhoc networks. The paper has compared various schemes such as DRI table, MN-ID broadcasting, BHS-ODMRP – Certificate chaining, RRT Table and Intrusion detection using anomaly detection. The comparison has been performed on certain network parameters such as PDR, EED as well as Throughput. The paper concludes that almost all the Black hole detection schemes have some overheads that make them susceptible to attacks from skilled attacker who can bypass these protocols