International Journal of Emerging Science and Engineering (IJESE)
MANET is a collection of wireless nodes connected by wireless links without any fixed infrastructure. For communication, a temporary path is established between the nodes. As nodes are mobile, the structure of network changes dynamically. Due to dynamic topology and no centralized monitoring makes it difficult to provide a secure network. So it is vulnerable to attack and one of attack is called black hole attack. In this paper, the authors will enhance the security. The proposed mechanism will identify the behavior of malicious node in a MANET.