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A New Routing Attack in Mobile Ad Hoc Networks

Literature survey:

A mobile ad hoc network (MANET) is a dynamic wireless network

that can be formed without any pre-existing infrastructure in which each node can act as a

router. MANET has no clear line of defense, so, it is accessible to both legitimate networkusers and malicious attackers. In the presence of malicious nodes, one of the main

challenges in MANET is to design the robust security solution that can protect MANET

from various routing attacks. Different mechanisms have been proposed using variouscryptographic techniques to countermeasure the routing attacks against MANET. However,

these mechanisms are not suitable for MANET resource constraints, i.e., limited bandwidth

and battery power, because they introduce heavy traffic load to exchange and verifyingkeys. In this paper, the current security issues in MANET are investigated. Particularly, we

have examined different routing attacks, such as flooding, black hole, link spoofing,

wormhole, and colluding miserly attacks, as well as existing solutions to protect MANETprotocols.

In this paper, we have described the Flooding Attack, a novel and powerful attack against

on demand ad hoc routing protocols. This attack allows attacker to mount a denial ofservice attack against all on-demand routing protocols for mobile ad hoc networks, even

secure on-demand routing protocols. We design the Flooding Attack Prevention (FAP) to

resisting this attack. The results of our implementation show the Flooding AttackPrevention efficiently defense the Ad Hoc Flooding Attack with little overload.

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Existing system:

DFD:

Flooding attack

Secured MANET

Flooding attack

FAP

Attacker?

Allow to communicate

Neighbour nodes

Isolate the attacker and

break the link

yes

no

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flow of project:

1. MANET implementation

2. Protocol implementation3. Flooding attack implementation4. FAP process

MANET implementation:

MANET implementation using several no. of nodes and madecommunication links among each node.

Protocol implementation:

Routing Protocols like AODV are implemented to enable routing andcommunication among MANET nodes and secure routing protocols are implemented.

Flooding attack implementation:

Implementation of flooding attack by assigning a node as an attacker node.

FAP process:

By using FAP, intruders are detected and isolated by its neighbors and links

are deleted.

System Specification:

Hardware specification:

Processor Type : Pentium IV

Speed : 2.4GHZ

Ram : 512 MB RAMHard disk : 20 GB HDD

Software specification:

Operating System : Red Hat LINUX. 9

Package : ns-allinone2.34

Language : TCL, C++

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