Fortinet 50B Selecting a modem mode, Redundant mode configuration, Stand alone mode configuration

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Selecting a modem mode

Configuring the modem interface

Figure 12: Example modem interface network connection

 

 

 

FortiGate-50A

DC+12V

 

 

 

 

Modem

Console

USB

External

Internal

 

 

USB-to-serial converter

V.92

External modem

Selecting a modem mode

The modem interface can work in one of two modes:

redundant mode

stand alone mode

Redundant mode configuration

The redundant modem interface serves as a backup to the Ethernet interface. If that Ethernet interface disconnects from its network, the modem automatically dials the configured dial-up account(s). When the modem connects to a dial-up 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.

For the FortiGate unit to switch from an Ethernet interface to the modem you must select the name of the interface in the modem configuration and configure a ping server for that interface. You must also configure firewall policies for connections between the modem interface and other FortiGate interfaces.

Stand alone mode configuration

In stand alone mode, you manually connect the modem to a dial-up account. The modem interface operates as the primary connection to the Internet. The FortiGate unit routes traffic through the modem interface, which remains permanently connected to the dial-up account.

If the connection to the dial-up account fails, the FortiGate unit modem automatically redials the number. The modem redials the ISP number based on the amount of times specified by the redial limit, or until it connects to a dial-up account.

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FortiGate-50A/50B, FortiWiFi-50B and FortiGate-100 FortiOS 3.0 MR4 Install Guide

01-30004-0265-20070831

Image 52
Contents Install G U I D E Trademarks Regulatory complianceContents Factory defaults Configuring the FortiGate unitUsing a wireless network Configuring the modem interfaceFortiGate Firmware Reverting to a previous firmware version IndexFortiUSB key About the FortiGate unit IntroductionFortiGate-50A FortiWiFi-50B FortiGate-50BFortiGate-100 Register your FortiGate unitFortiGuard Subscription Services Fortinet Family ProductsFortiClient FortiMailAbout this document FortiAnalyzerFortiReporter FortiBridgeDocument conventions Typographic conventionsFortinet documentation Customer service and technical support Fortinet Tools and Documentation CDFortinet Knowledge Center Comments on Fortinet technical documentationCustomer service and technical support Installing the FortiGate unit Package ContentsTechnical Specifications Dimensions WeightPower Requirements SpecificationsFortiWiFi-50B package contents FortiGate-100 package contents Front BackTo power on the FortiGate unit Powering on the FortiGate unitMounting Power over Ethernet Powering off the FortiGate unit Connecting to the FortiGate unitCommand line interface Connecting to the web-based managerFortiGate login To connect to the web-based managerConnecting to the CLI To connect to the CLIBits per second 9600 Data bits Parity Stop bits Flow controlQuick installation using factory defaults Quick configuration using default settingsGo to System Network Options Quick installation using factory defaults Factory defaults Factory default Dhcp server configuration Factory default NAT/Route mode network configurationFactory default Transparent mode network configuration Factory default firewall configurationAdministrative access Management IPFactory default protection profiles Restoring the default settings Restoring the default settings using the web-based managerRestoring the default settings using the CLI To reset the default settings Go to System StatusRestoring the default settings Planning the FortiGate configuration Configuring the FortiGate unitNAT/Route mode NAT/Route mode with multiple external network connections Internet RouterTransparent mode NAT/Route mode installation Preparing to configure the FortiGate unit in NAT/Route modeNAT/Route mode settings Go to System Network InterfaceUsing the web-based manager Dhcp or PPPoE configurationConfiguring basic settings To configure interfaces Go to System Network Interface Adding a default routeTo add a default route Go to Router Static Verifying the web-based manager configuration Using the command line interfaceConfiguring the FortiGate unit to operate in NAT/Route mode Verify the connectionTo configure DNS server settings ExampleTo set the external interface to use DHCP, enter To set the external interface to use PPPoE, enterTo add a default route Configuring the networks Connecting the FortiGate unit to the networksTo connect the FortiGate unit Transparent mode installation Preparing to configure Transparent modeTransparent mode settings Administrator Password DNS SettingsTo change to Transparent mode using the CLI To verify the DNS server settingsConnecting the FortiGate unit to your network Reconnecting to the web-based managerTo connect the FortiGate unit running in Transparent mode Next steps Set the date and timeUpdating antivirus and IPS signatures Scheduling antivirus and IPS updates To update IPS signatures using the CLITo enable schedule updates from the CLI Updating the IPS signatures from the CLITo add an override server using the CLI Adding an override serverNext steps Configuring the modem interface Connecting a modem to the FortiGate-50ARedundant mode configuration Selecting a modem modeStand alone mode configuration Configuring the modem for the FortiGate-50A Mode must be standalone Interface nameCLI commands for the FortiGate-50A Phone-numberAdding a Ping Server Dead gateway detectionAdding firewall policies for modem connections Using a wireless network Setting up a wireless networkPositioning an Access Point Radio Frequency interfaceUsing multiple access points Using multiple APs to provide a constant strong signalWireless Equivalent Privacy WEP Wireless SecurityWi-Fi Protected Access WPA FortiWiFi-50B operation modes Service Set IdentifierAccess Point mode Additional security measuresClient mode FortiWiFi in Access Point modeChanging the operating mode Setting up the FortiWiFi-50B as an Access PointSet the Dhcp settings To set the data security Go to System Wireless Settings Configure the firewall policiesSet the security options Upgrading the firmware using the web-based manager To upgrade the firmware using the web-based managerFortiGate Firmware Upgrading to a new firmware versionUpgrading the firmware using the CLI To upgrade the firmware using the CLIFor information, see the FortiGate Administration Guide Reverting to a previous firmware versionReverting to a previous firmware version using the CLI To revert to a previous firmware version using the CLIExecute ping To install firmware from a system reboot Press Any Key To Download Boot Image Restoring the previous configuration To backup configuration using the CLI Backup and Restore from the FortiUSB keyFortiUSB key To restore configuration using the CLI Using the USB Auto-Install featureTo configure the USB Auto-Install using the CLI Additional CLI commands for the FortiUSB key Testing a new firmware image before installing itTo test a new firmware image Testing a new firmware image before installing it Installing and using a backup firmware image Installing a backup firmware imageTo install a backup firmware image Press any key to enter configuration menuEnter File Name image.out Installing and using a backup firmware image Index CLIWall mounting Web-based manager, connecting
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