FortiGate-3016B, FortiGate-3600A and FortiGate-3810A FortiOS 3.0 MR5 Install Guide
40 01-30005-0343-20071113
NAT/Route mode installation Configuring
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Connecting the FortiGate unit to the network(s)
When you have completed the initial configuration, you can connect the FortiGate
unit between your internal network and the Internet.
To connect the FortiGate unit
1 Connect Port 1to the Internet.
2 Connect Port 2 interface to the hub or switch connected to your internal network.
3 Optionally, connect the other interfaces to networks as required.
You can use a DMZ network to provide access from the Internet to a web server or
other server without installing the servers on your internal network.
Figure 7: FortiGate-3600A NAT/Route mode connections
Configuring the networks
If you are running the FortiGate unit in NAT/Route mode, your networks must be
configured to route all Internet traffic to the IP address of the interface where the
networks are connected.
• For the internal network, change the default gateway address of all computers
and routers connected directly to your internal network to the IP address of the
FortiGate internal interface.
• For the DMZ network, change the default gateway address of all computers
and routers connected directly to your DMZ network to the IP address of the
FortiGate interface connecting to the DMZ.
Internal
network
Internet
Router
(or public switch)
FortiGate-3600A
Hub or switch
DMZ network
Web Server
Mail Server
Port 1
Port 3
Port 2
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