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Enable NetMon Packet Capture

To enable packet capture for NetMon, follow the steps below:

  1. Open the NetMon Web Management interface.

  2. On the top navigation bar, click Configuration, and then click the Network tab.

  3. Enable one or more interfaces to capture. NetMon accepts the following traffic types:

    • TAP. A network Test Access Point (TAP) sends traffic from a hardware switch to NetMon. A TAP connection requires a dedicated physical port. For more information, see Install NetMon Appliance Hardware.

    • SPAN. Switched Port Analyzer (SPAN) ports, also called mirroring ports, send a copy of network packets from one port to another port. A SPAN connection requires a dedicated physical port.

    • GRE. Generic Route Encapsulation (GRE) allows traffic to be routed over IP networks without a dedicated physical TAP or SPAN port. When GRE is enabled, traffic can only be captured on the NetMon management interface.

For more information, see Change Network Parameters.

  1. Click Apply Changes.
    NetMon restarts with the new settings, which may take a few minutes.

You can configure NetMon to capture all packets or only specific applications, including unknown traffic. For more information, see Select Applications for Packet Capture.