Initial Configuration for Data Collection
After successfully installing NFO (following the Installation Guide), the next crucial step is to configure NFO to receive flow data:
- Accessing the NFO Web Interface: Open a web browser and navigate to
https://<NFO_server_IP_or_hostname>:8443
. Log in using the initial credentials (as described in the Getting Started Guide). You will likely be prompted to change these credentials. - Configuring NetFlow Listeners: Navigate to the "Inputs" (refer to the Administration Guide for the exact location).
- Verify the default NetFlow listener on UDP port 9995.
- If necessary, add additional listeners for different ports or interfaces based on your network setup.
- Configuring Flow Exporters: On each network device that will send flow data:
- Enable flow export functionality.
- Set the destination IP address to the IP address of your NFO server.
- Set the destination UDP port to the configured NFO listener port (typically 9995).
- Specify the source interfaces or the scope of traffic to be exported.
- Choose the desired flow protocol, if applicable (e.g., NetFlow v9, IPFIX, sFlow).
- Refer to your specific network device vendor's documentation for detailed configuration steps.