36 Fortinet Inc.
Using the command line interface NAT/Route mode installation
Using the command line interface
As an alternative to using the setup wizard, you can configure the FortiGate unit using
the command line interface (CLI). To connect to the CLI, see “Connecting to the
command line interface (CLI)” on page 20.

Configuring the FortiGate unit to operate in NAT/Route mode

Use the information that you gathered in Table12 on page 34 to complete the
following procedures.

Configuring NAT/Route mode IP addresses

1Log into the CLI if you are not already logged in.
2Set the IP address and netmask of the internal interface to the internal IP address and
netmask that you recorded in Table 12 on page34. Enter:
set system interface internal mode static ip <IP address>
<netmask>
Example
set system interface internal mode static ip 192.168.1.1
255.255.255.0
3Set the IP address and netmask of the external interface to the external IP address
and netmask that you recorded in Table12 on page 34.
To set the manual IP address and netmask, enter:
set system interface external static ip <IP address> <netmask>
Example
set system interface external mode
static
ip 204.23.1.5
255.255.255.0
To set the external interface to use DHCP, enter:
set system interface external mode dhcp connection enable
To set the external interface to use PPPoE, enter:
set system interface external mode pppoe
username
<user name>
password
<password>
connection
enable
Example
set system interface external mode pppoe username
user@domain.com password mypass connection enable
4Confirm that the addresses are correct. Enter:
get system interface
The CLI lists the IP address, netmask and other settings for each of the FortiGate
interfaces.
5Set the primary DNS server IP addresses. Enter
set system dns primary <IP address>
Example
set system dns primary 293.44.75.21