Detection and Prevention of Black Hole Attacks in AODV Based Mobile Ad Hoc Networks

In Mobile Ad-hoc Networks (MANET) routing and network management are cooperatively done by mobile nodes. Many routing protocol are based on trust model to exchange information between neighbors. Such a characteristic makes nodes in MANET vulnerable to potential attacks. Black hole attack is one of the major types of attack that makes use of vulnerabilities of on-demand routing protocols such as Ad hoc On demand Distance Vector (AODV) protocol. In black hole attack malicious nodes pretend to be intermediate nodes of a route to some given destinations and drop any packet that subsequently goes through it. This paper has reviewed black hole attack detection and prevention techniques in AODV based Mobile Ad hoc networks, proposed by various authors.