Configuring The Modem Interface; Configuring Modem Settings - Fortinet FortiGate Series Administration Manual

System Network

Configuring the modem interface

Configuring modem settings

FortiGate Version 4.0 MR1 Administration Guide
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Zone Name Enter the name to identify the zone.
Block intra-zone traffic Select to block traffic between interfaces or VLAN subinterfaces in the
same zone.
Interface members Select the interfaces that are part of this zone. This list includes
configured VLANs.
All FortiGate models with a USB interface support USB modems, and FortiGate-50 series
and FortiGate-60 series modules include a serial modem port. In NAT/Route mode the
modem can be in one of two modes:
• In redundant (backup) mode, the modem interface automatically takes over from a
selected ethernet interface when that ethernet interface is unavailable.
• In standalone mode, the modem interface is the connection from the FortiGate unit to
the Internet.
In redundant or standalone mode when connecting to the ISP, you can configure the
FortiGate unit to automatically have the modem dial up to three dialup accounts until the
modem connects to an ISP.
Other models can connect to an external modem through a USB-to-serial converter. For
these models, you must configure modem operation using the CLI.
Initially modem interfaces are disabled, and must be enabled in the CLI to be visible in the
web-based manager. See the
Note: The modem interface is not the AUX port. While the modem and AUX port may
appear similar, the AUX port has no associated interface and is used for remote console
connection. The AUX port is only available on FortiGate models 1000A, 1000AFA2, and
3000A. For more information, see the
FortiGate CLI Reference.
This section describes:
• Configuring modem settings
• Redundant mode configuration
• Standalone mode configuration
• Adding firewall policies for modem connections
• Connecting and disconnecting the modem
• Checking modem status
Configure modem settings so that the FortiGate unit uses the modem to connect to your
ISP dialup accounts. You can configure up to three dialup accounts, select standalone or
redundant operation, and configure how the modem dials and disconnects.
For FortiGate-60B and FortiWifi-60B models with modems, the modem can be a
management interface. When enabled, a user can dial into the unit's modem and perform
administration actions as if logged in over one of the standard interfaces. This feature is
enabled in the CLI using
config system dialinsvr.
If VDOMs are enabled, the modem can be assigned to one of the VDOMs just like the
other interfaces.
system modem command in the
config system aux
Configuring the modem interface
FortiGate CLI Reference.
command in the
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