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Blocking of Flooding Attacks: Using Active Internet Traffic Filtering Mechanism

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Author(s): Deepthi.S#1, Prashanti.G*2 , Sandhya Rani.Kr

Journal: International Journal of Engineering Trends and Technology
ISSN 2231-5381

Volume: 4;
Issue: 7;
Start page: 3031;
Date: 2013;
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Keywords: Denial of Services Defences | Network level security and Protection | Traffic Filtering. Flooding

ABSTRACT
Now a day there is a dramatic increase in the frequency of distributed denial-of-service (DDoS) attacks. These attacks are an acute contemporary problem, with few practical solutions available today; one of the Fundamental limitations of the Internet is which allows anonymous people to access the network. Whenever the attacker wants to block the receiver for some amount of time they will send a disruptive flow which halt the receiver and they consume receiver’s network link resources. Critical infrastructures and businesses alike are vulnerable to DoS attacks flood of data that can incapacitate their networks with traffic floods. Unfortunately, current mechanisms require per-flow state at routers, ISP collaboration, or the deployment of an overlay infrastructure to defend against these events. In a bandwidth-flooding attack. A large number of compromised sources send high-volume traffic to the target with the purpose of causing congestion in its Receivers circuit and disrupting its legitimate communications. We proposed a mechanism called a enhanced Active Internet Traffic Filtering (AITF), a network layer Defense mechanism against such attacks [3]. AITF preserves a significant fraction of a receiver’s bandwidth in the face of bandwidth flooding .AITF can maintain their connectivity between the nodes that are connected in the network in the face of Bandwidth flooding. Hence, the network-layer of the Internet can provide an effective, Scalable and incrementally deployable solution against bandwidth-flooding attacks.
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