International Journal of Computer Applications
A MANET (Mobile Ad-hoc NETwork) is a network of mobile devices in a self-configuring and infrastructure less environment. The devices in MANET are linked by wireless medium. There are big chances of attacks in MANET due to its natural features including dynamically changing network topology, open medium, no centralized monitoring and management point. There is no assurance of attack free communication. The malicious node(s) causes dropping and forwarding only selective packets are called as gray hole. So, the security solution must be developed to address the protection of data and route.