NTOP Network Monitor

Ntop, is a great network monitoring software. Web based interface is the one of its best features.
Watching network and reporting is very easy over the web based interface.

Ntop can watch the following things on your network.

• TCP/UDP/ICMP
• (R)ARP
• IPX
• DLC
• Decnet
• AppleTalk
• Netbios
• TCP/UDP