Configuring Transparent mode installation
FortiGate-3016B, FortiGate-3600A and FortiGate-3810A FortiOS 3.0 MR5 Install Guide
01-30005-0343-20071113 41
• For the external network, route all packets to the FortiGate external interface
(Port 1).
If you are using the FortiGate unit as the DHCP server for your internal network,
configure the computers on your internal network for DHCP.
Make sure the connected FortiGate unit is functioning properly by connecting to
the Internet from a computer on the internal network. You should be able to
connect to any Internet address.
Transparent mode installation
This section describes how to install and configure the FortiGate unit and run in
Transparent mode.
Preparing to configure Transparent mode
Use Table 9 on page 41 to gather the information you need to customize
Transparent mode settings.
You can configure Transparent mode using one of the following three methods:
• the web-based manager GUI
• the command line interface (CLI)
• the front control buttons and LCD
The method you choose depends on the complexity of the configuration, access
and equipment, and the type of interface you are most comfortable using.
Table 9: Transparent mode settings
Using the web-based manager
You can use the web-based manager to complete the initial configuration of the
FortiGate unit. You can continue to use the web-based manager for all FortiGate
unit settings. For information about connecting to the web-based manager, see
“Connecting to the web-based manager” on page 19.
The first time you connect to the FortiGate unit, it is configured to run in
NAT/Route mode. You need to change to Transparent mode.
To switch to Transparent mode using the web-based manager
1 Go to System > Status.
2 Select Change beside the Operation Mode.
Administrator Password:
Management IP
IP: _____._____._____._____
Netmask: _____._____._____._____
Default Gateway: _____._____._____._____
The management IP address and netmask must be valid for the
network from which you will manage the FortiGate unit. Add a default
gateway if the FortiGate unit must connect to a router to reach the
management computer.
DNS Settings
Primary DNS Server: _____._____._____._____
Secondary DNS Server: _____._____._____._____
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