Fortinet FortiGate 50A - Manual (Page 29)

Getting started Planning the FortiGate configuration
FortiGate-50A Installation and Configuration Guide
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In NAT/Route mode you can also change the configuration of the FortiGate DHCP
server to supply IP addresses for the computers on your internal network. You can
also configure the FortiGate to allow Internet access to your internal Web, FTP, or
email servers.
If you are configuring the FortiGate unit to operate in Transparent mode, you can
switch to Transparent mode from the web-based manager and then use the setup
wizard to add the administration password, the management IP address and gateway,
and the DNS server addresses.
CLI
If you are configuring the FortiGate unit to operate in NAT/Route mode, you can add
the administration password and the Internal interface address. You can also use the
CLI to configure the external interface for either a manual (static) or a dynamic (DHCP
or PPPoE) address. Using the CLI, you can also add DNS server IP addresses and a
default route for the external interface.
In NAT/Route mode you can also change the configuration of the FortiGate DHCP
server to supply IP addresses for the computers on your internal network.
If you are configuring the FortiGate unit to operate in Transparent mode, you can use
the CLI to switch to Transparent mode, Then you can add the administration
password, the management IP address and gateway, and the DNS server addresses.