NetFort Tips & Tricks - How to add a NetFlow sensor to LANGuardian

  • 1
  • Idea
  • Updated 5 years ago
  • (Edited)
Many of our customers have been asking how to add a NetFlow sensor to LANGuardian therefore thought we'd remind you how.

The steps are as follows:

1. Click on the LANGuardian menu bar and select Sensors.
2. On the Sensors page, click Add New Sensor. LANGuardian will display a list of sensor types.
3. Select NetFlow from the dropdown menu and click Next.
4. Enter the Sensor Description, select the NetFlow Version, add the Listening UDP port*, add the Accept flow data from address information and enable/disable Traffic Monitoring. Click Save.
5. Configure NetFlow on a Cisco router.

*Normally you would use 2055 for the first NetFlow sensor configured.

To check if your flow sensor is working, click on the All Reports menu (top right of the LANGuardian GUI) and select the first report on the left. It will be called 'Applications in Use' or 'Top Protocols', depending on the version you are running.
Now select the flow sensor from the Sensor drop down on the left and run the report for say, 24 hours and review the results.

There is a charge per NetFlow sensor. If this feature is not available, it usually means that you do not have the required license item. If you are unsure of the features that have been licensed to you, please consult

If you have any questions about adding a NetFlow sensor to LANGuardian or configuring NetFlow on a Cisco router, or indeed any other aspect of network monitoring with LANGuardian, please contact us any time.  
Photo of Aisling Brennan

Aisling Brennan, Official Rep

  • 393 Posts
  • 8 Reply Likes

Posted 5 years ago

  • 1

Be the first to post a reply!