An Implementation of the Gray Hole Prevention Technique for MANETs Based on Sequence Number

Vaibhav Jain¹

Section:Research Paper, Product Type: Journal
Vol.1 , Issue.2 , pp.47-51, Jun-2013

Online published on Jun 30, 2013

Copyright © Vaibhav Jain . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Protecting the network layer from malicious attacks is an important and challenging security issue in mobile ad hoc networks (MANETs). MANETs are used most commonly all around the world because it has the ability to communicate with each other without any fixed network. It has the tendency to take decisions on its own which is the autonomous state. A security solution is very much needed for networks to protect both route and data forwarding operations in the network layer. A Gray Hole is a node that selectively drops and forwards data packets after it advertises itself as having the shortest path to the destination node in response to a route request message from a source code. Gray holes are difficult to detect. In this work, we have proposed a method that can be used to find the secured routes and prevent the black holes nodes (malicious nodes) in the MANET by checking whether there is a large difference between the sequence number of the source node or intermediate node. For this, we have created 3 scenarios for implementation i.e. Normal AODV, AODV with attack, and AODV with gray hole prevention. Our results confirm that our proposed prevention technique based on sequence number was effective and successful in identifying Gray Hole nodes in a network and could remove these malicious nodes from the network.

Key-Words / Index Term :
Gray Hole Prevention, MANET security, Ad hoc Network Security

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