Checking FortiOS network settings

Check the FortiOS network settings if you have problems connecting to the management interface. FortiOS network settings include, interface settings, DNS Settings, and DHCP settings.

Interface settings

If you can access the FortiGate with the management cable only, you can view the interface settings in the GUI.

To view the interface settings in the GUI:
  1. Go to Network > Interfaces.
  2. Select an interface and click Edit.
  3. Check the following interfaces to ensure they are not blocking traffic.

    Setting

    Description

    Link Status

    The status is Up when a valid cable is plugged in. The status is Down when an invalid cable is plugged in.

    The Link Status is shown physically by the connection LED for the interface. If the LED is green, the connection is good. If Link Status is Down, the interface does not work.

    Link status also appears in the Network > Interfaces page by default.

    Addressing mode

    Do not use DHCP if you do not have a DHCP server. You will not be able to log into an interface in DHCP mode as it will not have an IP address.

    IP/Network Mask

    An interface r