System Network Configuring the modem interface
FortiGate Version 4.0 Administration Guide
01-400-89802-20090424 141
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Figure 69: Modem settings (Redundant)
Enable Modem Select to enable the FortiGate modem.
Modem status Modem status can be: not active, connecting, connected, disconnecting,
or hung up.
Dial Now/Hang Up (Standalone mode only) Select Dial Now to manually connect to a dialup
account. If the modem is connected, you can select Hang Up to
manually disconnect the modem.
Mode Select Standalone or Redundant mode.
Auto-dial
(Standalone mode)
Select to dial the modem automatically if the connection is lost or the
FortiGate unit is restarted.
You cannot select Auto-dial if Dial on demand is selected.
Dial on demand
(Standalone mode)
Select to dial the modem when packets are routed to the modem
interface. The modem disconnects after the idle timeout period if there is
no network activity.
You cannot select Dial on demand if Auto-dial is selected.
Idle timeout
(Standalone mode)
Enter the timeout duration in minutes. After this period of inactivity, the
modem disconnects.
Redundant for
(Redundant mode)
Select the ethernet interface for which the modem provides backup
service.
Holddown
Timer
(Redundant mode)
(Redundant mode only) Enter the time (1-60 seconds) that the FortiGate
unit waits before switching back to the primary interface from the modem
interface, after the primary interface has been restored. The default is 1
second. Configure a higher value if you find the FortiGate unit switching
repeatedly between the primary interface and the modem interface.
Redial Limit The maximum number of times (1-10) that the FortiGate unit modem
attempts to reconnect to the ISP if the connection fails. The default redial
limit is 1. Select None to have no limit on redial attempts.
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