Fortinet 60c manual Configuring the modem interface, Selecting a modem mode

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FortiGate-60 Installation Guide Version 2.80 MR8

Configuring the modem interface

The FortiGate-60 includes the option of an external modem for use as either a redundant interface or a standalone 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 standalone 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 dialup accounts until the modem connects to an ISP.

This chapter describes:

Selecting a modem mode

Configuring modem settings

Connecting and disconnecting the modem in Standalone mode

Defining a Ping Server

Adding firewall policies for modem connections

Selecting a modem mode

The external modem, when connected to the FortiGate-60 can work in one of two modes, depending on your requirements:

redundant mode

standalone mode.

Redundant mode configuration

The redundant modem interface in redundant mode backs up a selected ethernet interface. If that ethernet interface disconnects from its network, the modem automatically dials the configured dialup account(s). 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. 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.

FortiGate-60 Installation Guide

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Contents January 01-28008-0018-20050128 Installation GuideRegulatory Compliance TrademarksTable of Contents Index Introduction Secure installation, configuration, and managementWeb-based manager Command line interfaceDocument conventions Setup wizardFortiGate documentation FortiGate Installation GuideFortiManager documentation Related documentationFortinet Knowledge Center Comments on Fortinet technical documentationFortiMail documentation Customer service and technical supportFortiLog documentation Customer service and technical support Customer service and technical support Getting started Mounting Package contentsTo power on the FortiGate unit Turning the FortiGate unit power on and offPower requirements Environmental specificationsTo connect to the web-based manager Connecting to the web-based managerStop bits Flow control Connecting to the command line interface CLITo connect to the CLI Bits per second 9600 Data bits ParityGo to System Network DNS Quick installation using factory defaultsFactory default Dhcp server configuration Factory default FortiGate configuration settingsFactory default NAT/Route mode network configuration Management IP Factory default Transparent mode network configurationFactory default firewall configuration Administrative accessStrict Factory default protection profilesScan NAT/Route mode Planning the FortiGate configurationExample NAT/Route mode network configuration NAT/Route mode with multiple external network connectionsExample NAT/Route multiple internet connection configuration Transparent modeWeb-based manager and setup wizard Configuration optionsNext steps Preparing to configure the FortiGate unit in NAT/Route mode NAT/Route mode installationDhcp or PPPoE configuration Using the web-based managerPPPoE settings User name Password To add a default route Configuring basic settingsTo configure interfaces Go to System Network Interface To configure DNS server settings Go to System Network DNSTo configure interfaces Using the command line interfaceConfiguring the FortiGate unit to operate in NAT/Route mode To add/change the administrator passwordGet system interface ExampleTo configure DNS server settings Using the setup wizardInternal servers Setup wizard settings PasswordExternal Interface Dhcp serverStarting the setup wizard Connecting the FortiGate unit to the networksSetup wizard settings Antivirus FortiGate-60 FortiGate-60 NAT/Route mode connectionsConfiguring the Modem interface Configuring the networksTo register the FortiGate unit Go to System Config TimeTo configure virus, attack, and spam definition updates To set the date and timeGo to System Maintenance Update Center Preparing to configure Transparent mode Transparent mode installationManagement IP To change the Management IP Go to System Network ManagementTo change to Transparent mode using the CLI Reconnecting to the web-based managerTo configure the default gateway To configure the management IP addressTo start the setup wizard Internal Connecting the FortiGate unit to your networkTo register your FortiGate unit Go to System Maintenance Update Center Priorities of heartbeat device and monitor priorities High availability installationConfiguring FortiGate units for HA operation High availability configuration settingsGroup ID MAC Address To change the FortiGate unit host name Config system global Set hostname namestr end Configuring FortiGate units for HA using the CLITo configure the FortiGate unit for HA operation Connecting the cluster to your networksTo connect the cluster HA network configurationInstalling and configuring the cluster Installing and configuring the cluster Selecting a modem mode Configuring the modem interfaceRedundant mode configuration To operate in standalone mode Go to System Network Modem Standalone mode configurationRedundant for Configuring modem settingsMode Auto-dialTo configure modem settings Go to System Network Modem Connecting and disconnecting the modem in Standalone modeTo connect to a dialup account Go to System Network Modem ISP Defining a Ping ServerDead gateway detection To disconnect the modemAdding firewall policies for modem connections CLI IndexIndex