Redundant Mode Configuration - Fortinet FortiGate Series Administration Manual

System Network

Redundant mode configuration

FortiGate Version 4.0 MR1 Administration Guide
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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 Select to dial the modem automatically if the connection is lost or the
FortiGate unit is restarted.
(Standalone mode)
You cannot select Auto-dial if Dial on demand is selected.
Dial on demand Select to dial the modem when packets are routed to the modem
interface. The modem disconnects after the idle timeout period if there is
(Standalone mode)
no network activity.
You cannot select Dial on demand if Auto-dial is selected.
Idle timeout Enter the timeout duration in minutes. After this period of inactivity, the
modem disconnects.
(Standalone mode)
Redundant for Select the ethernet interface for which the modem provides backup
service.
(Redundant mode)
Holddown (Redundant mode only) Enter the time (1-60 seconds) that the FortiGate
unit waits before switching back to the primary interface from the modem
Timer
interface, after the primary interface has been restored. The default is 1
(Redundant mode)
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.
Wireless Modem Display a connected wireless modem if available.
Supported Modems Select to view a list of supported modems.
Usage History Display connections made on the modem interface. Information
displayed about connections includes:
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•
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Dialup Account Configure up to three dialup accounts. The FortiGate unit tries
connecting to each account in order until a connection can be
established.
The active dialup account is indicated with a green check mark.
Phone Number The phone number required to connect to the dialup account. Do not add
spaces to the phone number. Make sure to include standard special
characters for pauses, country codes, and other functions as required by
your modem to connect to your dialup account.
User Name The user name (maximum 63 characters) sent to the ISP.
Password The password sent to the ISP.
To configure the modem in Redundant mode, see
page 201.
To configure the modem in Standalone mode, see
page 202.
In redundant mode the modem interface backs up a selected ethernet interface. If that
ethernet interface disconnects from its network, the modem automatically dials the
configured dialup accounts. When the modem connects to a dialup account, the FortiGate
unit routes IP packets normally destined for the selected ethernet interface to the modem
interface.
date and time
duration of the connection in hours, minutes, and seconds
IP address connected to
traffic statistics including received, sent, and total
current status of the connection
"Redundant mode configuration" on
"Standalone mode configuration" on
Configuring the modem interface
201