ftp http and other protocols packet transfer
There is a cyber cafe. In it there are a number of computers connected to a server which monitors their activity. Each computer accesses the net through a number of protocols. For e.g., com1 uses http com2 uses ftp and http com3 uses ftp http and smtp etc. I need to know how many packets of each protocol are going from or coming to each com. How shall I do it ??
Is there a specific command by which I can do it ??