What does it do?
PRTG allows you to quickly and easily setup and run a monitoring station for SNMP enabled networks. With just a few mouse clicks you can log the amount of data flowing through routers, monitor CPU utilization or check disk space usage. More...

How can I use it?
The most common usage is monitoring the bandwidth usage of leased lines, routers and firewalls. But you can also monitor many other aspects of servers, managed switches, printers and other network components as long as they are SNMP enabled.

Using PRTG (Paessler Router Traffic Grapher) you can set up a usage monitoring station for your routers and servers in minutes.

"Free Edition" and "Pro Edition"

Which version do I want?
The Free Edition is completely free for personal and commercial use. Simply download PRTG and give it a try!

If you want to monitor more devices and/or ports or if you want to run PRTG as NT service you must purchase the Pro Edition.

What PRTG does
Using the SNMP (Simple Network Management Protocoll) PRTG reads the current traffic data from your router (or any other SNMP enabled device) and shows the result in three graphs:

• used bandwidth over the last 24 hours (kbit/sec)
• transferred data counts for the last 14 days
• transferred data counts for last 12 months

To achieve a correct counting PRTG needs to be running all the time to periodically access the latest counts from the device. The data for the last 365 days is then stored in the program so that a reset of the device's counters does not interfere with correct results.

PRTG works with routers/firewall like Cisco PIX 505, Cisco 7xxx Series, Lightning Multicom Speedsurf, LANCOM Office Connect but also other devices like Windows 2000 servers and workstations, network printers or switches.

Screenshots
Windows GUI Screenshot
The Windows GUI is a MDI like application with one window per monitored interface/port. Graphs and data tables can be copied to the clipboard or printed out.







HTML Webpage Screenshot
PRTG can optionally create a set of HTML pages with the graphs and the data tables of the measured traffic, even a CSV download is included.