Mitigation Against Denial-of-Service Flooding and Malformed Packet Attacks

Denial-of-service attack is really a concern and challenging task to deal with due to the extensive use of advanced technologies by attackers. The denial-of-service flood attacks can consume the network resource such as available bandwidth, CPU, memory, thus affecting the normal functioning of the working network. The arrival of unknown source IP addresses, volume of incoming requests from these IP’s and malformed packets invalid flag settings and other invalid packet conditions are the key parameters for filtering decision. In this paper, these features are explored to mitigate DoS attacks effectively. The performance evaluation of the proposed mechanism is done using qualitative and quantitative parameters.