International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056 Volume: 04 Issue: 05 | May -2017 www.irjet.net p-ISSN: 2395-0072 © 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 2208 Efficient Detection and prevention of Wormhole Attacks in Wireless Mesh Network Fayaz Ahamed Shaikh 1 , Uttam Patil 2 1 Student, P.G. Department of Computer Science and Engineering, VTU/ KLE Dr M S Sheshgiri College of Engineering & Technology, Belguam, India, 9902760958 (e-mail: fayazmshaikh@gamil.com). 2 Professor, P.G. Department of Computer Science and Engineering, VTU/ KLE Dr M S Sheshgiri College of Engineering & Technology, Belguam, India ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - Wireless Mesh Networking is a rising technology in order to offer an opportunity to construct a network that is able to grow in terms of coverage to present service access (i.e. internet access) for a large number of people with dissimilar needs. WMNs are weaker to wormhole attack (one out of much kind of attacks). In a usual wormhole attack, two or more malicious nodes plan jointly in establishing a tunnel by a well- organized communication medium. The aim of this paper is to explain a wormhole detection algorithm for WMNs which detect the wormholes by calculating neighbor list as well as directional neighbor list of the source node. The main aim of the algorithm is that it can offer approximate location of nodes and effect of wormhole attack on all nodes which is helpful in implementing countermeasures. The performance evaluation is complete in varying no. of wormholes in the network. Key Words: AODV(Ad hoc On-Demand Distance Vector), WMN(Wireless Mesh Networks), Wormhole attack, Wormhole Detection,Router 1. INTRODUCTION WMN (Wireless Mesh Networks) is said to be a very optimistic technology as well as will play an ever more significant part in upcoming invention wireless mobile networks. Wireless Mesh Network is characterized by active self configuration, self organization, and self healing to allow speedy deployment, low cost, simple maintenance, reliable services, high scalability as well as attractive network facility, connectivity and flexibility. The wireless technology is less maintenance, low price and speedily installable. According to the need of services a number of indoor and outdoor network technologies are designed. The wireless Mesh network is one of the essential technologies among different technologies. Because of its self-configuring and self-healing nature the (WMNs) wireless mesh networks are very valuable. Thus this WMN can be used for community networks, cellular mobile networks and business networks. Figure 1.1 Wireless Mesh Network Figure 1.1 shows a typical WMN is constitute of a set of stationary mesh routers (MRs) and a set of mesh clients to interact through mesh routers that form the mesh backbone. Wireless Mesh Networks having 2 nodes: (i) mesh clients (ii) mesh routers. A wireless mesh router having extra routing features to support mesh network. By numerous network interface cards (NICs) a mesh router is usually equipped. 1.1Overview of WMNs Potential Attacks To WMNs there are two sources of threats. First, external attackers not belong to the mesh network can add erroneous information or jam the communication. Second, from internal compromised nodes there are additional harsh threats come, since internal attacks are not as simple to stop as external attacks. The attack can be normal, i.e., the opponent misbehaves simply if misbehaving is helpful in conditions of cost, resource reduction or obtained excellence of service, if not it is malicious. Active and Passive attacks be able to be notable. Passive attacks plan to take information and within the network eavesdrop on the communication. In case of active attacks, the attacker injects as well as into the network modifies packets.