Network Router User Manual

FortiGate-50A/50B, FortiWiFi-50B and FortiGate-100 FortiOS 3.0 MR4 Install Guide
24 01-30004-0265-20070831
Quick installation using factory defaults Installing the FortiGate unit
Quick installation using factory defaults
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.
4 Go to System > Network > Interface and select Edit for the External or 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 Internet Service Provider (ISP) select
DHCP and go to step 9
• PPPoE: to get an IP address from the ISP select PPPoE and go to step 9
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
external 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 computers (up to 100 computers) in the
range of 192.168.1.110 –192.168.1.210.
Figure 7: 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 28.
50A
FortiGate-50A
Router
Internet
Obtain IP address
and DNS server IP address
automatically
Internal interface
192.168.1.99
DHCP server and DNS
server for the internal network
External interface
Configuring Manual IP,
DHCP, or PPPoE addressing