Apple EPR2320TM, DPR2320TM manual Configuring TCP/UDP Port Triggers

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How Do I Configure the Gateway Cable Modems?

Configuring TCP/UDP Port Triggers

Use the Setup Advanced Settings – Port Triggers page to configure TCP/UDP port triggers. Port triggering is similar to port forwarding but is dynamic. In other words, the system does not hold the ports open indefinitely. For example, when the gateway cable modem detects outgoing data on a specific IP port number set in the “Trigger Range,” the resulting ports set in the “Target Range” will open for incoming data. If the system detects no outgoing traffic on the “Trigger Range” ports for a period of 10 minutes, the “Target Range” ports close. This is a safer method for opening specific ports for special applications, such as, video conferencing programs, interactive gaming, and file transfer in chat programs. This is safe because the ports are dynamically triggered and not held open continuously or erroneously left open by the router administrator. Therefore, these ports are not exposed and vulnerable for potential hackers to discover.

If you are not familiar with the advanced settings detailed in this section, contact your cable service provider before you attempt to change any of the gateway cable modem default advanced port triggers settings.

Click Port Triggers in the Advanced Settings section of the Setup page to access the Setup Advanced Settings – Port Triggers page.

Setup Advanced Settings – Port Triggers Page Example

The following illustration is an example of the Setup Advanced Settings – Port Triggers page.

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Contents WebSTAR DPR2320 EPR2320 Gateway Cable Modems User’s Guide Benefits and Features IntroductionThis Guide Cleaning the Equipment PlacementRead and Retain These Instructions Ventilation AccessoriesLightning and Power Surges OverloadingDamage that Requires Service Power Cord ProtectionPower Sources GroundingWhat’s In the Carton? Front Panel Description Back Panel Description Where is the Best Location for My Gateway Cable Modem? What are the System Requirements for Internet Service?How Do I Set Up My High-Speed Internet Access Account? Do Not Have a High-Speed Internet Access AccountAlready Have an Existing High-Speed Internet Access Account To connect devices How Do I Connect My Devices to Use the Internet?To install the gateway cable modem How Do I Configure TCP/IP Protocol? Configuring TCP/IP on Your Internet DevicesTo configure Windows 95, 98, 98SE, or ME systems To configure Windows 2000 systems To configure Windows XP systemsTo configure Macintosh systems How Do I Install USB Drivers? Installing USB DriversTo install Windows 98SE and Windows ME USB drivers To install Windows 2000 drivers To install Windows XP driversHow Do I Troubleshoot My Internet Service Installation? Cannot connect to the InternetMy gateway cable modem does not register a cable connection Need to renew the IP address on my PC To renew the IP Address for Windows 2000, NT, or XP systemsWhat are the Requirements for Ethernet Network Devices? What are the Wiring Requirements for Ethernet Networking?Do I Need to Configure the TCP/IP Protocol on My Computer? How Many Ethernet Network Devices Can I Connect?Where is the Best Location for My Ethernet Network Devices? How Do I Select and Place Ethernet Network Devices?Connecting Ethernet Devices How Do I Connect Ethernet Network Devices?To connect Ethernet devices What are the Requirements for USB Network Devices? What are the Wiring Requirements?Do I Need to Install USB Drivers on My Computer? How Many USB Devices Can I Connect?Where is the Best Location for My USB Network Devices? How Do I Select and Place USB Network Devices?How Do I Connect USB Network Devices? To connect USB devices What are the Requirements for Wireless Network Devices? How Many Wireless Devices Can I Connect?What are the Requirements for Wireless Networking? How Do I Select and Place Wireless Network Devices? Where is the Best Location for My Wireless Network Devices?How Do I Install Wireless Network Devices? Installing Wireless Network DevicesTo install wireless network devices How Do I Configure the Gateway Cable Modems? Configuring the Gateway Cable ModemAbout Your Modem Page Example About Your Modem Page Description Field NameSetting Configuration Options Setup Page ExampleSetup Page Section Headings Basic SettingsAdvanced Settings Firewall Field Name DescriptionConfiguring Your Password Settings WirelessSetup Basic Settings Password Settings Page Example Setting Up Your PasswordConfiguring the Default Settings Setup Basic Settings Network Configuration Page ExampleSetup Basic Settings Network Configuration Page Description LAN IPConfiguring and Managing IP Addresses Setup Basic Settings IP Management Page ExampleFunction Keys Setup Basic Settings IP Management Page Description Setup Basic Settings Fixed CPE IP Assignment Page Example Reserving IP AddressesSetup Basic Settings Fixed CPE IP Assignment Description Setup Basic Settings Restart Cable Modem Page ExampleRestarting the Gateway Modem Enabling and Disabling Advanced Features Setup Advanced Settings Options Page ExampleSetup Advanced Settings Options Page Description Format http//xxx.xxx.xxx.xxx8080 whereConfiguring IP Address Filters Setup Advanced Settings IP Filtering Page ExampleSetup Advanced Settings IP Filtering Page Description Configuring MAC Address Filters Setup Advanced Settings MAC Filtering Page ExampleSetup Advanced Settings MAC Filtering Page Description Setting Up MAC Address FiltersConfiguring and Enabling TCP and UDP Port Filters Setup Advanced Settings Port Filtering Page ExampleSetup Advanced Settings Port Filtering Page Description Configuring Port Forwarding for Local IP Addresses Setup Advanced Settings Port Forwarding Page ExampleSetup Advanced Settings Port Forwarding Page Description Configuring TCP/UDP Port Triggers Setup Advanced Settings Port Triggers Page ExampleSetup Advanced Settings Port Triggers Page Description Configuring the DMZ Host Setup Advanced Settings DMZ Host Page ExampleSetup Advanced Settings DMZ Host Page Description Setup Firewall Web Filters Page Example Web Features Setup Firewall Web Filters Page DescriptionContent Filtering Section HeadingsKeyword and Domain Blocking Trusted ComputersConfiguring Firewall Time of Day Access Filters Setup Firewall Time of Day Access Filter Page ExampleConfiguring Firewall Event Logging and E-mail Alerts Setup Firewall Event Logging Page ExampleSetup Firewall Event Logging Page Description Configuring Your Wireless Access Point Parameters Setup Wireless Basic Page ExampleSetup Wireless Basic Page Description SsidSetup Wireless Privacy Page Example Setup Wireless Privacy Page Description Page Configuring Wireless Access Point Access Control Setup Wireless Access Control Page ExampleSetup Wireless Access Control Page Description Configuring Wireless Data Rates and WiFi Thresholds Setup Wireless Advanced Page Example Setup Wireless Advanced Page Description Frequently Asked Questions Having Difficulty?Modem does not register an Ethernet connection Common Troubleshooting IssuesDon’t understand the front panel status indicators Modem does not register a cable connectionTips for Improved Performance Check and CorrectHow Do I Renew the IP Address on My PC? Renewing the IP Address on Your PCFront Panel Status Indicator Functions Initial Power Up, Calibration, and RegistrationNormal Operations Special Conditions Documentation Copyright Notice TrademarksDisclaimer Software Use NoticeFCC Declaration of Conformity FCC ComplianceUnited States FCC Compliance Canada EMI RegulationFor Information If You Have Questions