NetFlow Analytics for Splunk App relies on flow data processed by NetFlow Optimizer™ (NFO).
You also need to install the Technology Add-on for NetFlow (TA-netflow) on your search heads, indexers, and forwarders. To download TA-netflow please visit:
https://splunkbase.splunk.com/app/1838/
You can download NFO and get free trial license here:
https://www.netflowlogic.com/downloads/
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If you want to use NetFlow Analytics for Splunk App (https://splunkbase.splunk.com/app/489/) to analyze your flow data, you also need to install Technology Add-on for NetFlow (https://splunkbase.splunk.com/app/1838/) and NetFlow Optimizer downloadable at https://www.netflowlogic.com/download/.
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