Survey on Detection and Prevention Techniques for Malicious Node in MANET

Wireless ad-hoc networks has now become one of the most vibrant and active field of communication and networks. Due to lack of a defined central authority, MANETs are more vulnerable to security attacks and thus security is essential requirement in MANET as compared to the wired network. The nature and structure of MANET makes it attractive to various types of attackers. In this paper the principal focus is on routing and security issues associated with mobile ad hoc networks which are required in order to provide secure communication. On the basis of the nature of attack interaction, the attacks against MANET may be classified into active and passive attacks. In this paper we discuss mobile ad hoc network security issues and there detection techniques. We first analyze the main vulnerabilities in the mobile ad hoc networks, which have made it much easier to suffer from attacks, then we discuss the security criteria of the mobile ad hoc network and present the main attack types that exist in it. Finally we compare the current security detection techniques for the mobile ad hoc network. Keywords— Mobile Ad Hoc Network, Security, Malicious Node, Secure Routing