Netflow
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You can find the Netflow Settings at **Services → Netflow**.

**Netflow** is used for collecting network traffic data and emiting it as NetFlow flow towards a specified collector.

Before you can use the Netflow it has to be installed. You can install it at **System → Addons**.

Settings
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You can create multiple netflow instances, each will send the data to a collector.

.. image:: img/Services-Netflow.png
    :width: 100%
    :align: center
    :alt: Netflow

On the page the Netflow can be created, updated, enabled or disabled.

**Interface** to listen to traffic to.

**Filter** is a TCPDump style filter expression selects which packets will be captured.
If no expression is given, all packets on the interface will be captured.

**Version** is the Netflow Version and 5 by default.

**Remote IP Address** defines the Remote Netflow collector IP Address.

**Remote Port** is the Remote Netflow collector Port and 2055 by default.