This project shows the network traffic as tcpdump does, but graphically. The users can see packet's traffic in real-time and see the informations contained on these packets individually. The main goal of the project is to give an educational point of vue of all the information that can be present on a network. The user can also send packets contructed by himself, through the network. This can be useful to show, for exemple, what must be sent to initialize a TCP connection. The educational point of vue is the main purpose, this is not another network sniffer that allows to catch sensible informations !