I'm looking for a simple, free tool to simulate a broadcast storm on my network. I am implementing some measures on a customer's network switches to minimize the impact of a broadcast storm and would like to be able to test my implementation when done by simulating a broadcast storm. My perfect solution would be a free Windows GUI or command line tool that doesn't require too much knowledge of packet crafting. I've seen Nemesis and some others, but am not sure if it is easy to create a broadcast storm with them. Your advice is always appreciated!