Getting started Configuration options
FortiGate-100 Installation and Configuration Guide 39
You can connect up to three network segments to the FortiGate unit to control traffic
between these network segments.
• External can connect to the external firewall or router.
• Internal can connect to the internal network.
• DMZ can connect to another network segment.
Configuration options
Once you have selected Transparent or NAT/Route mode operation, you can
complete your configuration plan, and begin configuring the FortiGate unit.
You can use the web-based manager setup wizard or the command line interface
(CLI) for the basic configuration of the FortiGate unit.
Setup Wizard
If you are configuring the FortiGate unit to operate in NAT/Route mode (the default),
the Setup Wizard prompts you to add the administration password and the internal
interface address. The Setup Wizard also prompts you to choose either a manual
(static) or a dynamic (DHCP or PPPoE) address for the external interface. Using the
wizard, you can also add DNS server IP addresses and a default route for the external
interface.
In NAT/Route mode you can also configure 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 all interface addresses. 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 configure 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.