AdRem iTools
AdRem iTools is a networking toolset combining Ping, Traceroute, DNS Lookup, SNMP viewer, port/network/bandwidth scanner, and more. The tools’ output can be saved to a file (text, XML, HMTL, or Excel), while Ping or Traceroute tests can be graphed.
NetSendFaker
NetSendFaker allows you to send anonymous Net Send messages to anyone that is connected to the network. You can also emulate messages as if they were sent from other computer. The tool is designed with a user-friendly interface and is easy to use.
NetCompConnector
Create list of computers in network neighborhood (Samba) with CList utility. To faster response of computer condition in LAN (using ping technique) & access to them use tray utility NCConnector. Has integration with TotalCommander.