Network configuration Configuring interfaces
FortiGate-400 Installation and Configuration Guide 135

Deleting zones

You must remove all interfaces and VLAN subinterfaces from a zone before you can
delete the zone. You can only delete zones that have the Delete icon beside them
in the zone list.
1Go to System > Network > Zone.
2Select Delete to remove a zone from the list.
3Select OK to delete the zone.
Configuring interfaces
Use the following procedures to configure the FortiGate interfaces:
Viewing the interface list
Bringing up an interface
Changing an interface static IP address
Adding a secondary IP address to an interface
Adding a ping server to an interface
Controlling management access to an interface
Configuring traffic logging for connections to an interface
Changing the MTU size to improve network performance
Configuring port4/ha
Configuring the management interface (Transparent mode)

Viewing the interface list

Use the following procedure to view the interface list.
1Go to System > Interface.
The interface list is displayed. The interface list shows the following status information
for all of the FortiGate interfaces and VLAN subinterfaces:
The IP address of the interface
The netmask of the interface
The zone that the interface has been added to
The administrative access configuration for the interface
The link status for the interface (link status does not apply to VLAN subinterfaces)
If the link status is a green arrow, the interface is up and can accept network traffic.
If the link status is a red arrow, the interface is down and cannot accept traffic. To
bring an interface up, see the procedure “Bringing up an interface”.

Bringing up an interface

If the link status of an interface on the interface shows that it is down, you can use the
following procedure to bring the interface up.
1Go to System > Interface.
The interface list is displayed.
2Select Bring Up for the interface that you want to bring up.