Detection and Control of DDOS Attacks over Reputation and Score Based MANET

MANET is quickly spreading for the property of its capability in forming rapidly changing topologies network without the aid of any established infrastructure or centralized administration. The security challenges in MANET have become a primary concern to provide secure communication. The Attacks on MANET disrupts network performance and reliability. The DOS (denial-of-service), Distributed denial-of-service (DDoS) attacks are a rapidly growing problem. The multitude and variety of both the attacks and the defense approaches is overwhelming. These attacks lead toward the degradation or prevention of legitimate use of network resources. There is a need to provide an incentive or credit based mechanism that can provide cooperation among nodes in the network and improve overall network performance and functionality by prevention, detection and control of DOS and DDOS attacks. Therefore, in this paper, we proposed the detection and control mechanism for DDOS attacks over reputation and score based MANET and a clustering technique uses the reputation and score value of nodes.