tcptrack: tcptrack (display information about TCP connections)
tcptrack: 
tcptrack: It passively watches for connections on a network interface, 
tcptrack: keeps track of their state, and displays a list of connections 
tcptrack: in a manner similar to the unix 'top' command.
tcptrack: It displays source and destination addresses and ports, 
tcptrack: connection state, idle time, and bandwidth usage.
tcptrack:   
tcptrack:
tcptrack: 
tcptrack: