The below error message is received.

This message means the NetFlow collector is receiving flow data from a device whose IP address is not managed in the SolarWinds platform, so the flow data is discarded. To resolve this, you must either:

Add the sending device as a managed node using the correct IP address, or

Enable the " Allow matching nodes by another IP " option in the NetFlow settings, which allows SolarWinds to match flows sent from an interface IP or secondary IP.