01-08-2012, 02:27 PM
DETECTION OF WORMHOLE ATTACK IN MANET
DETECTION OF WORMHOLE ATTACK IN MANET.pptx (Size: 1.17 MB / Downloads: 59)
WORMHOLE ATTACK
Wormhole refers to an attack on MANET routing protocols in which colluding nodes create an illusion that two remote regions of a MANET are directly connected through nodes that appear to be neighbors but are actually distant from one another.
PROBLEM DESCRIPTION
Our objective is to detect the wormhole nodes in the networks and prevent the wormhole effect in the network by using ids and compare the performances with and without wormhole attack using X graph.
MODULES OF PROJECT:
Creation of nodes and transmission of packets through AODV protocol.
Cloning of AODV protocol to inject the wormhole behavior.
Cloning of AODV protocol to prevent wormhole attack.
Calculation of performance metrics for AODV, wormhole AODV and ids AODV.
Comparing the performance metrics for AODV, wormhole AODV and ids AODV
Cloning of AODV protocol to inject the wormhole behavior
To inject the wormhole behaviour
Add the drop function in receive function of wormholeaodv.cc.
The AODV protocol is cloned and named as wormholeAODV .
By doing this, these two protocols will send the same AODV packets. To integrate the wormholeAODV protocol to NS2, two common files has to be modified.
The first file to be modified is ns-lib.tcl. Here the protocol agent for wormholeAODV protocol is added.
The next file is ns-agent.tcl. In this the source port and the destination port is set for the cloned protocol.
conclusion
The following results are observed from the project done
The performance of network with and without wormhole attack are simulated
Packet loss is in greater numbers when the network is under wormhole attack
To prevent its effect ids AODV is added and the performance has increased significantly
All the results have successfully simulated in ns2 and compared in X graph