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18 01-28008-0018-20050128 Fortinet Inc.
Quick installation using factory defaults Getting started
Quick installation using factory defaults
You can quickly set up your FortiGate unit for a home or small office using the web-
based manager and the factory default FortiGate configuration. All you need to do is
set your network computers to obtain an IP address automatically and to obtain DNS
server IP addresses automatically (using DHCP), access the web-based manager,
and configure the required settings for the FortiGate WAN1 interface. You can also
configure FortiGate DNS servers and add a FortiGate default route if needed.
The FortiGate internal interface acts as a DHCP server for the internal network,
automatically assigning IP addresses to up to 100 computers in the range
192.168.1.110 –192.168.1.210.
Figure 4: Quick configuration using default settings
The Fortigate DHCP server also assigns the DNS server IP address 192.168.1.99 to
each computer on the internal network. As a result, the FortiGate unit internal
interface acts as a DNS server for the internal network. Using DNS forwarding, the
FortiGate unit forwards DNS requests received from the internal network to the DNS
server IP addresses added to the FortiGate unit configuration and returns lookup
results to the internal network.
For more information about default DHCP server settings see “Factory default DHCP
server configuration” on page 19.
The following procedure describes how to configure your internal network and the
FortiGate unit to use the FortiGate default settings.
1 Connect the FortiGate unit between the internal network and the Internet and turn on
the power.
2 Set the TCP/IP properties of the network computers to obtain an IP address
automatically and a DNS server IP address automatically (using DHCP).
3 From the management computer browse to https://192.168.1.99.
The FortiGate web-based manager appears.
4 Go to System > Network > Interface and select Edit for the WAN1 interface.
5 Select one of the following Addressing modes
• Manual: enter a static IP address and netmask, select OK, and go to step 6
• DHCP: to get an IP address from the ISP select DHCP and go to step 9
• PPPoE: to get an IP address from the ISP select PPPoE and go to step 9
6 Go to System > Network > DNS.
FortiGate-60 Unit
Internal network
WAN1 interface
Configure Manual IP, DHCP, or
PPPoE addressing
Internal interface
192.168.1.99
DHCP server and DNS server
for the internal network
Obtain IP address and
DNS server IP address
automatically
Internet
INTERNAL
DMZ4321
LINK 100 LINK 100 LINK 100 LINK 100 LINK 100 LINK 100 LINK 100
WAN1 WAN2
PWR STATUS