Apple DPR2320TM User Manual
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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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WebSTAR DPR2320 and EPR2320 Gateway Cable Modems User’s Guide

Setup Advanced Settings – Port Triggers Page Description

Use this page to enter and enable the port forwarding trigger and target range start and end ports along with protocol information in the appropriate fields. The following example illustrates how to use the port triggering feature to configure the Microsoft X-BoxOnline Live for Internet gaming.

For most widely used applications (including MicrosoftX-BoxOnline Live), the WebSTAR firewall automatically maps and opens ports required for that application while the application is in use.

1.In the first row, enter 88 inboth Start Port and End Port fields.

2.In the same row, select UDP from thedrop-downlist in the Protocol field, and then select the box in theEnable field.

3.In the second row, enter 3074 inboth Start Port and End Port fields.

4.In the same row as the second entry, select Both, and then select the box in theEnable field.

5.Click Apply to apply and save your new port forwarding settings.

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How Do I Configure the Gateway Cable Modems?

Configuring the DMZ Host

Use the Setup Advanced Settings – DMZ Host page to configure an IP address that is visible to the WAN. DMZ hosting is commonly referred to as “exposed host,” and allows you to specify the “default” recipient of WAN traffic that Network Address Translation (NAT) is unable to translate to a known local PC. DMZ allows one IP address to be unprotected while others remain protected.

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 DMZ host settings.

Click DMZ Host in the Advanced Settings section of the Setup page to access the Setup Advanced Settings – DMZ Host page.

Setup Advanced Settings – DMZ Host Page Example

The following illustration is an example of the Setup Advanced Settings – DMZ Host page.

Setup Advanced Settings – DMZ Host Page Description

Use this page to place a Private LAN IP device, for example, an FTP, Mail, or Web server directly on the Internet (bypassing the firewall). You set the server with a fixed IP address as a DMZ Host by entering its IP address in the DMZ Address field. Make sure the IP address used is not in the range of addresses delivered by the built-inDHCP server. After setting up a DMZ Host, all ports on this device are open to the Internet. You may configure only one PC to be the DMZ host. DMZ is generally used for PCs running “problem” applications that use random port numbers and do not function correctly with the specific port triggers or port forwarding setups described earlier in this guide. After entering a DMZ Address, clickApply to apply and save your new DMZ Host setting.

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WebSTAR DPR2320 and EPR2320 Gateway Cable Modems User’s Guide

Configuring Web Page Filtering, Parental Control, and

Firewall Protection

Use the Setup Firewall – Web Filters page to configure Web page filtering and firewall protection. This page allows you either block or allow Internet access based on keywords and/or domain names. You can also filter on the time of day and the day of the week.

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 firewall Web filters settings.

Click Web Filters in the Firewall section of the Setup page to access the Setup Firewall – Web Filters page.

Setup Firewall – Web Filters Page Example

The following illustration is an example of the Setup Firewall – Web Filters page.

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