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

Cisco WLC, Netflow



Hi I am trying to get Netflow from a Cisco WLC. But nothing is happening! Wireshark shows no CFLOW protocol from the WLC, but it shows other types like TCP and TLS (the laptop is connected by wifi) The WLC is sending packets:

(Cisco Controller) >show flow exporter statistics

Exporter-name: Netflow
  Total Flows Sent: 41870914
  Total Pkts Sent: 2984736
  Total Pkts Dropped: 0

The WLC is configured as:

     Monitor-Name            Exporter-Name            Exporter-IP          Port    Record Name
  ============             =============            ===========      ====  ===========
  TEST                                 Netflow                        XX.XX.XX.XX       2055  ipv4_client_src_dst_flow_record

The laptop (XX.XX.XX.XX) is getting Netflow from another Cisco router (different device) but not from the WLC!

cisco netflow wlc

Created on Jul 21, 2023 9:15:42 AM

Last change on Jul 26, 2023 8:14:27 PM by  Felix Wiesneth [Paessler Support]

1 Reply




In order to find out if proper and compatible NetFlow packets are arriving at the PRTG host, please use our NetFlow Tester: https://www.paessler.com/tools/netflowtester

Make sure that the actual NetFlow Sensor is paused indefinitely while testing. Please provide us with a screenshot or the logs from the NetFlow Tester for further evaluation.

Please contact [email protected] with the results for further analysis and recommendations.


Created on Jul 28, 2023 2:36:11 PM by  Mitzi Rodriguez [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.