Security Enhancement in AODV Routing Protocol for

Abstract — Adhoc networks are a new wireless networking paradigm for mobile hosts. Mobile Ad-hoc Networks (MANETs) are wireless networks with absence of infrastructure centralized support. Routing in MANETs is challenging task due to mobility of nodes. Several routing protocols have been developed for Mobile Ad-hoc Networks. This paper describes concept of security enhancement in AODV routing protocol by detection and tolerance of attacks using secure message transmission (SMT) protocol. Present AODV routing protocol is not secure by malicious nodes. One main challenge in design of these networks is their vulnerability to security attacks. In this paper we study how to make node malicious and at same we will detect malicious node in AODV protocol using Network Simulator-2(NS-2) tool. Index Terms — AODV, AdHoc, NS-2(Network Simulator 2) I