What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general.

Learn more

PRTG Network Monitor

Intuitive to Use. Easy to manage.
More than 500,000 users rely on Paessler PRTG every day. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free Download

Top Tags

View all Tags

Multiple Netflow Source (code: PE056) - What does it mean?



A customer contacted me asking about this issue on PRTG Network Monitor.

What does it mean? Is there anything to do?


multiple netflow pe056 source

Created on Mar 23, 2011 3:17:44 PM

3 Replies




that means that one Netflow Sensor is getting Netflow Packages from more than one device.

Best Regards.

Created on Mar 23, 2011 3:46:05 PM by  Torsten Lindner [Paessler Support]



right, but... it is not a problem, is it?

My customer informed me like it was an alarm.


Created on Mar 23, 2011 4:21:47 PM



For Netflow v9 Sensors it might actually be a problem and cause incorrect monitoring results. Please use one Netflow v9 Sensor (with an unique port to listen on) per sending device. Should it be necessary to aggregate the stats then, please use the Sensor Factory.

Created on Mar 23, 2011 4:34:53 PM by  Torsten Lindner [Paessler Support]

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.