Problem
If you have access to a network lab with a dedicated, isolated test network, explore the effect of high traffic volumes on its systems. Start any suitable Web server (e.g., Apache, IIS, TinyWeb) on one of the lab systems. Note the IP address of this system. Then have several other systems query its server. Now determine how to generate a flood of 1500-byte ping packets by exploring the options to the ping command. The flood option -f may be available if you have sufficient privilege. Otherwise determine how to send an unlimited number of packets with a 0-second timeout. Run this ping command, directed at the Web server's IP address, on several other attack systems. See if it has any effect on the responsiveness of the server. Start more systems pinging the server. Eventually its response will slow and then fail. Note that since the attack sources, query systems, and target are all on the same LAN, a very high rate of packets is needed to cause problems. If your network lab has suitable equipment to do so, experiment with locating the attack and query systems on a different LAN to the target system, with a slower speed serial connection between them. In this case far fewer attack systems should be needed. You can also explore application level DoS attacks using Slow Loris and RUDY using the exercise presented in [DAMO12].