A Survey of Wormhole Detection and Prevention Technique in DSR Protocol

Security is an important issue in network communication. A wormhole attack is one of the hardest problems in mobile ad-hoc network. In wormhole attack a malicious node captures packets from one location in the network, and tunnels them to another malicious node at a distant point, which replays them locally. There are many techniques to detect and prevent them. In this survey paper we find some detection techniques and classify the proposed solution in which prevent the routing protocol against the wormhole attack. In this paper we present a security enhancement to dynamic source routing (DSR) protocol against wormhole attacks for ad hoc networks.