by Skyward Software A network traffic monitor and logger. Monitor all your network connections in real-time or browse historical reports. See what, when and where with a built-in packet sniffer. Automatically resolves IP addresses to hostnames. Supports proxies.
by AdRem Software NetCrunch automatically discovers network and monitors critical devices, services and applications. It presents physical and logical network topology as customizable graphical maps. In case of problems it notifies admin or executes corrective actions