Journal Title : International Journal of Modern Trends in Engineering and Science

Author’s Name : Annie Ezhilarasi.M  unnamed

Volume 03 Issue 05 2016

ISSN no:  2348-3121

Page no: 46-51

Abstract – The wireless mobile Ad-hoc network (MANET) is self-configuring mobile nodes connected through the wireless links with the decentralized networks where the nodes communicate with each other on the basis of mutual trust. For the network design, nature of the MANETs brings a new security challenges. Due to the dynamic infrastructure less nature and decentralized networks, wireless Ad-hoc networks are unprotected and vulnerable to the attack.. Lot of methods have been developed to identify and to preserve these kind of attacks. But these solutions mainly focus on attack-resilient rather than rooting out the source of attacks. Wormhole attacks can weaken or disable wireless sensor networks. MANET is severely affected by Distributed Denial of Service (DDoS) attacks which are the major problem for users of computer systems connected to the Internet. The wormhole attack is possible even if all communication provides legitimacy and secrecy. In the wormhole attack, an attacker slash packets at one location in the network, tunnels them to another location, and retransmits them there into the network. This can form a serious threat in wireless networks, including many ad hoc network routing protocols and location-based wireless security systems. The technique is based on the nodes quality index value. Simulation done with 16 nodes and in these two nodes considered as malicious node in Network Simulator2 (NS2). 

Keywords— MANET, DDoS, DoS,Wormhole Effect 


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