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Netflow V9 No Data




We are using PRTG version x64 . After I've restarted our Cisco ASA 5515-X software version 9.4(4)17 , no data is showing to on the Netflow sensor.

I used the Netflow Tester but it shows up only Unassigned Flows. I've also doubled checked our ASA's Netflow configuration and it 's proper configured. Any idea what's causing the No data issue?

netflow no-data prtg

Created on Apr 5, 2018 10:19:56 AM

3 Replies



How have you setup the traffic sampling?

Created on Apr 5, 2018 6:12:03 PM by  Benjamin Day [Paessler Support] (1,441) 2 1



Hi Benjamin,

Yes, I've put 100 on the Netflow sensor sampling rate.

Created on Apr 6, 2018 1:39:37 AM



Yes, but what kind of traffic are you sampling? Have you given the ASA parameters for what kind, or told it to look at all traffic?

Can you open a ticket, and send a screenshot of the Netflow tester tool?

Created on Apr 6, 2018 6:26:17 PM by  Benjamin Day [Paessler Support] (1,441) 2 1

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.