Network configuration

Configuring the modem interface

 

 

If the connection to the dialup account fails, the FortiGate unit redials the modem. The modem redials the number of times specified by the redial limit, or until it connects to a dialup account.

In standalone mode the modem interface replaces the external ethernet interface. When configuring the modem, you must set Redundant for to the name of the ethernet interface that the modem interface replaces. You must also configure firewall policies for connections between the modem interface and other FortiGate interfaces.

Note: Do not add a default route to the ethernet interface that the modem interface replaces.

Note: Do not add firewall policies for connections between the ethernet interface that the modem replaces and other interfaces.

To operate in standalone mode

1Go to System > Network > Modem.

2From the Redundant for list, select the ethernet interface that the modem is replacing.

3Configure other modem settings as required. See “Configuring modem settings” on page 108.

Make sure there is correct information in one or more Dialup Accounts.

4Select Dial Up.

The FortiGate unit initiates dialing into each dialup account in turn until the modem connects to an ISP.

5Configure firewall policies for connections to the modem interface. See “Adding firewall policies for modem connections” on page 111.

Adding firewall policies for modem connections

The modem interface requires firewall addresses and policies. You can add one or more addresses to the modem interface. For information about adding addresses, see “Adding addresses” on page 147. When you add addresses, the modem interface appears on the policy grid.

You can configure firewall policies to control the flow of packets between the modem interface and the other interfaces on the FortiGate unit. For information about adding firewall policies, see “Adding firewall policies” on page 140.

FortiGate-50A Installation and Configuration Guide

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Fortinet 50A Adding firewall policies for modem connections, 111, To operate in standalone mode Go to System Network Modem