International Journal of Engineering Technology, Management and Applied Sciences (IJETMAS)
Mobile Ad hoc NETwork (MANET) is distributed and self-configuring wireless network. MANET does not have a predefined network infrastructure. As MANET has dynamic infrastructure it is highly vulnerable to attacks particularly routing attacks. There are several intrusion response mechanisms available for justifying the routing attacks but most of them isolate malicious node. Risk justifying technique is one of the significant factors in MANET environment. Because of the non-stop alteration in topology and an open vulnerable media network, achieving security in ad hoc network is very difficult.