Intt ru s ii o n Dett ec tt iio n E na blle d M obii ll e A d hoc Nett w or ks tt o Co u ntt er Bll ac kh o lle a n d G ray ho lle Att tt a c ks
Associate Professor, Dept of ECE, B. Prabhakara Reddy, M.N. Giri Prasad · IOSR Journal of Electronics and Communication Engineering · 2014
Mobile ad hoc network (MANET) is a temporary multi-hop wireless network that consists of mobile nodes which have the ability to communicate with each other without having fixed network infrastructure or central base station.The open access nature of wireless links in MANETs makes them susceptible to the Denial of service attacks such as Blackhole, Grayhole and etc.The disadvantage of the most ratified routing protocols like Ad hoc On-demand Distance vector( AODV) routing protocol is the fact that they have been developed without considering security mechanisms in advance hence resulting in the vulnerability of MANETs to such malicious attacks.In this work we propose an ad hoc routing protocol called SEA (Security Enabled AODV) to defend MANET against the Blackhole and Grayhole attacks.The simulations were implemented using popular discrete event network simulator NS-2.35 in the latest version ubuntu-12.04environment.Network Simulations have been performed on the basis of performance parameters and effect has been analyzed after adding Blackhole and grayhole nodes.The simulation analysis proved that the proposed SEA outperforms the conventional AODV routing protocol in the attack scenarios in terms of different Quality of Service (QOS) parameters such as PDR, Average end to end Delay, Throughput, Normalized Routing Overhead and etc.