· Install and enable generic SNMP software from the Windows CD (see corresponding knowledge base article)
· Set the security feature to allow PRTG to access the device
· Start the "Add Sensor" wizard, choose SNMP, enter the local PC's IP and the SNMP login data
· In the checkbox list check the ports (which correspond to the network cards in this case) that you want to monitor and finish the wizard
· Now you will get graphs of traffic for each network card
PRTG Traffic Grapher is an easy to use Windows software for monitoring and classifying bandwidth usage. It provides system administrators with live readings and long-term usage trends for their network devices. The most common usage is bandwidth usage monitoring, but you can also monitor many other aspects of your network like memory and CPU utilizations.