How to generate a DoS/DDoS attack


Create a mininet network connected with the floodlight controller.
Create two terminals in the mininet using xterm command lets say: xterm h1 h2

 flooMake one host h2 as a server receiving UDP traffic using
(host1: 10.0.0.1) iperf -s -u
Make the host h1 as the client sending flooding traffic
(host2: 10.0.0.2) iperf -c 10.0.0.1 -b 30M -l 1200
In order to parallely send packets to the server use the following command:
(host2: 10.0.0.2) iperf -c 10.0.0.1 -b 30M -l 1200 -P 6
The above command add the number of iperf tx form attacker using threads. 


In this way,it sends packet in parallel to the server. 


https://stackoverflow.com/questions/46431999/dos-attack-using-iperf-in-the-network

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