Fortinet 50A/50B, 100 manual Quick installation using factory defaults

Quick installation using factory defaults Installing the FortiGate unit

Quick installation using factory defaults

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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

	Internal interface
External interface	192.168.1.99
	DHCP server and DNS
Configuring Manual IP,
	server for the internal network
DHCP, or PPPoE addressing

Internet

Router

FortiGate-50A

Obtain IP address

and DNS server IP address automatically

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.

The following procedure describes how to configure your internal network and the FortiGate unit to use the FortiGate default settings.

Connect the FortiGate unit between the internal network and the Internet and turn on the power.

Set the TCP/IP properties of the network computers to obtain an IP address automatically and a DNS server IP address automatically (using DHCP).

From the management computer, browse to https://192.168.1.99.

Go to System > Network > Interface and select Edit for the External or WAN1 interface.

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

24	FortiGate-50A/50B, FortiWiFi-50B and FortiGate-100 FortiOS 3.0 MR4 Install Guide
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