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ADSL2+ Gateway with VoIP
The Applications & Gaming - DMZ Tab
The DMZ screen allows one local user to be exposed to the Internet for use of a special-purpose service such as
Internet gaming and videoconferencing through DMZ Hosting. DMZ hosting forwards all the ports for one
computer at the same time, which differs from Port Range Forwarding, which can only forward a maximum of 10
ranges of ports.
DMZ Hosting. This feature allows one local user to be exposed to the Internet for use of a special-purpose
service such as Internet gaming and videoconferencing. To use this feature, select Enable. To disable DMZ, select
Disable.
Figure 6-34: DMZ
DMZ Host IP Address. To expose one computer, enter the computer's IP address. To get the IP address of a
computer, refer to "Appendix B: Finding the MAC Address and IP Address for Your Ethernet Adapter."
When finished making your changes on this tab, click the Save Settings button to save these changes, or click
the Cancel Changes button to undo your changes.
The Applications & Gaming - QoS Tab
QoS
Quality of Service (QoS) ensures better service to high-priority types of network traffic, which may involve
demanding, real-time applications, such as Internet phone calls or videoconferencing.
Enabled/Disabled. To use QoS, select Enabled. Otherwise, keep the default, Disabled.
PVC QoS Priority
PVC-based QoS assigns different levels of priority, or precedence, to different permanent virtual circuits. This is
useful when you have, for example, one PVC set up for traditional Internet services (Web browsing, e-mail, and
the like) and another PVC set up to carry time-sensitive data such as VoIP or IPTV streams. Giving the second PVC
a higher QoS level helps ensure the best possible voice or picture quality.
Edit list of QoS Settings
Figure 6-35: QoS
In addition to PVC-based QoS, you can assign different levels of priority to different packets based on information
in the packets. To do this, click the Edit list of QoS Settings button. A window titled QoS Function will appear.
Chapter 6: Configuring the ADSL2+ Gateway
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The Applications & Gaming - DMZ Tab
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