A Review on Attacks in Mobile Ad hoc Network (MANET)

Abstract

MANET (Mobile Ad hoc Network) is a wireless network having no any fixed infrastructure. It consists of autonomous, self-organized wireless mobile nodes, which are to move in or out in the network. MANET performs all the network activities such as message delivery, discovery of route path etc. using its nodes only. It uses the routing protocols such as DSDV, DSR and AODV etc. As there is no clear line of defense in MANET, so, it is more prone to both the legitimate users and the malicious nodes . The presence of these malicious nodes is one of the major the challenges in MANET and it has become necessary to design a very robust solution for the security of MANET. MANET is more vulnerable to attacks because of its openness, dynamic and infrastructure-less nature. The two types of routing attacks are , such as active i.e. Gray Hole Attack, Black Hole Attack, Flooding, Spoofing, Wormhole and passive i.e. Eavesdropping, Traffic Analysis. AODV is used to discover the path from source to destination but its more prone to malicious intent like gray hole and black hole attacks. Gray Hole attack tends to drop the packet while the routing process. In Black Hole attack, the malicious node presents itself as the shortest and newest route to the destination node and attracts the routing packets. This paper presents a focus on the fundamental issues in MANET by describing its related research in the previous year along with its concept, features and vulnerabilities.