Packet Generator

Are you looking for a powerful packet generator? You need nothing more but a Windows XP machine:

I made this screenshot maybe a year ago from a computer running Windows XP SP2. The screen says that there were in 1 hour 20 minutes 19.262.375.378.395 packets sent out from a network card. It must have been caused by some bug or a hardware error, but anyway, it's  still funny :-)