Configuring The Modem Interface; Selecting A Modem Mode; Redundant Mode Configuration - Fortinet FortiGate FortiGate-100A Install Manual

Configuring the modem interface

Configuring the modem interface
60
Series

Selecting a modem mode

Redundant mode configuration

FortiGate-60 series and FortiGate-100A FortiOS 3.0 MR4 Install Guide
01-30004-0266-20070831
The modem interface is available on the FortiGate-60 series only excluding the
FortiGate-60ADSL.
The following section will cover how to configure the FortiGate-60M using the
web-based manager. To configure the FortiGate-60 and FortiWiFi-60 modem, use
the CLI.
The FortiGate-60 series includes support for a redundant or stand alone modem
interface in NAT/Route mode.
• In redundant mode, the modem interface automatically takes over from a
selected Ethernet interface when that Ethernet interface is unavailable.
• In stand alone mode, the modem interface is the connection from the FortiGate
unit to the Internet.
When connecting to an ISP in either configuration, the modem can automatically
dial up to three dial-up accounts until the modem connects to an ISP.
This section includes the following topics:
• Selecting a modem mode
• Configuring modem settings
• Connecting and disconnecting the modem in Stand alone mode
• Configuring the modem for the FortiGate-60 and FortiWiFi-60
• Adding a Ping Server
• Adding firewall policies for modem connections
The modem interface can work in one of two modes:
• redundant mode
• stand alone mode
The redundant modem interface serves as a backup to the Ethernet interface. If
that Ethernet interface disconnects from its network, the modem automatically
dials the configured dial-up account(s). When the modem connects to a dial-up
account, the FortiGate unit routes IP packets normally destined for the selected
Ethernet interface to the modem interface. During this time, the unit pings the
Ethernet connection to check when it is back online.
When the Ethernet interface can connect to its network again, the FortiGate unit
disconnects the modem interface and switches back to the Ethernet interface.
Selecting a modem mode
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