802.11 Disassociation DoS attack Simulation Using Verilog*

A number of Denial of Service (DoS) attacks in IEEE 802.11 are due to unauthenticated/ unencrypted management and control frames. Current IEEE 802.11 simulators deal with Physical and MAC layers and do not include the exchange of management and control frames, thus making it difficult to simulate an attack (DoS) and its possible solution. A basic IEEE 802.11 network simulator using Verilog is presented. Basic aim is to design a simulator using a hardware description language (HDL) such as Verilog, since the functions and protocols described in state machines are best simulated using a HDL. Besides simulation of a simple wireless network, the paper also presents simulation of a spoofed MAC disassociation DoS attack and one of its possible solutions. The proposed simulator includes the communication setup process and can be used for simulating other DoS attacks and their possible solutions. Key-Words: Network Simulator, IEEE 802.11, Verilog, Wireless LAN, Link layer simulation.