Atomic Watch

Bandwidth Monitor monitors bandwidth usages, displays real-time download and upload speeds in graphical and numerical forms, logs bandwidth usages, and provides daily, weekly and monthly bandwidth usages reports.

Router IP Console is a simple in usage SNMP-based tool intended for management and control of active network equipment (such as IP routers, repeaters etc). "Router IP Console" can raise an alarms via email on critical situations. And more...

IP Watcher monitors your public and local IP address. If your IP address changes it will send an email, to the address you specify, with the new IP address. This email also includes the computer name and time the change occurred.

Perspective is a troubleshooting and remediation platform for small and mid-enterprise networks. Includes VM, device and application monitoring, alerts, performance baselines, NetFlow, sFlow & JFlow support, wireless networks and robust reporting.

Paessler Netflow Tester is a free program that simply dumps the data of all Netflow packets that a computer receives from a Cisco router. This can be useful when debugging bandwidth monitoring configurations based on Cisco`s Netflow protocol.