Fortinet FortiGate 50A User Manual download pdf (Page 33)

FortiGate-50A Installation and Configuration Guide Version 2.50

FortiGate-50A Installation and Configuration Guide 33

NAT/Route mode installation

This chapter describes how to install the FortiGate unit in NAT/Route mode. To install

the FortiGate unit in Transparent mode, see “Transparent mode installation” on

page 41.

This chapter describes:

• Installing the FortiGate unit using the default configuration

• Preparing to configure NAT/Route mode

• Using the setup wizard

• Using the command line interface

• Connecting the FortiGate unit to your networks

• Configuring your networks

• Completing the configuration

Installing the FortiGate unit using the default configuration

Depending on your requirements, you may be able to deploy the FortiGate unit

without changing its factory default configuration. If the factory default settings in

Table 11 are compatible with your requirements, all you need to do is configure your

internal network and then connect the FortiGate unit.

Table 11: FortiGate unit factory default configuration

Operating Mode NAT/Route mode.

Firewall Policy One NAT mode policy that allows users on the internal network to access

any Internet service. No other traffic is allowed. All web and email traffic

is scanned for viruses.

External

interface

The External interface receives its IP address by DHCP from your

Internet Service Provider (ISP).

DHCP Server

on internal

network

The FortiGate unit functions as a DHCP server for your internal network.

If you configure the computers on your internal network to obtain an IP

address automatically using DHCP, the FortiGate unit automatically sets

the IP addresses of the computers in this range:

Starting IP: 192.168.1.1

Ending IP: 192.168.1.254

One IP address is reserved for the FortiGate internal interface:

192.168.1.99.

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Fortinet FortiGate 50A User Manual Page 33