PocketPacket

TracePlus/Ethernet is a powerful network monitoring, performance tool supporting 10-1000 MB/s Ethernet networks. 32 and 64 bit drivers are compatible with all Windows platforms. Supports IPv6, ICMPv6, and VLAN features of the 802.1Q/802.1P protocols.

Capture and Sniff Yahoo Messenge chat conversations on all computers in network,It is able to record conversations automatically in real time,And export all intercepted messages to HTML files

NetPalpus is a powerful and easy-to-use network management tool, which can discover, organize and monitor all devices on your network.

Nsauditor is a network security scanner that allows to audit and monitor network for possible vulnerabilities,checks methods that a hacker might use to attack it. Over 45 network tools for scanning,sniffing,enumerating and gaining access to machines.

Full Feature logging and traffic analysis software for Linksys WRT54G/GS routers featuring 20 different reports and graphs and much more to help you understand and manage your network traffic and security.