Assumptions
• The FortiGate units used in this example have interfaces named port1, port2, and port3.
• All FortiGate units in this example have factory default configuration with FortiOS 4.0 MR2 firmware installed, and are in NAT/Route operation mode.
• During configuration, if settings are not directly referred to they will be left at default settings.
• Basic firewalls are in place to allow unfiltered traffic between all connected interfaces in both directions.
• This OSPF network is not connected to any other OSPF areas outside of this example.
• The Internet connection is always available.
• Other devices may be on the network, but do not affect this configuration.