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NETGEAR RangeMax™ NEXT Wireless Router WNR834B User Manual
Fine-Tuning Your Network
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v2.1, July 2007
5.
Click Add Service.
6.
In the Service Name box, type a descriptive service name.
7.
Under Service User, select Any (default) to allow this service to be used by any computer on
the Internet. Otherwise, select Single address and enter the IP address of one computer to
restrict the service to a particular computer.
8.
Select the Service Type, either TCP or UDP or both (TCP/UDP). If you are not sure, select
TCP/UDP.
9.
In the Triggering Port box, enter the outbound traffic port number that will cause the inbound
ports to be opened.
10.
Enter the inbound connection port information such as Connection Type, Starting Port, and
Ending Port boxes.
11.
Click Apply. The service appears in the Port Triggering Portmap Table.
Figure 5-4
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NETGEAR RangeMax™ NEXT Wireless Router WNR834B User Manual
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Using Universal Plug and Play
Universal Plug and Play (UPnP) helps devices, such as Internet appliances and computers, to
access the network and connect to other devices as needed. UPnP devices can automatically
discover the services from other registered UPnP devices on the network.
To turn on Universal Plug and Play:
1.
From the main menu of the browser interface, under Advanced, click UPnP. The UPnP menu
appears.
2.
The available settings and displays in this menu are:
Turn UPnP On
UPnP can be enabled or disabled for automatic device configuration. The default setting for
UPnP is disabled. If disabled, the router will not allow any device to automatically control the
resources, such as port forwarding (mapping) of the router.
Note:
If you use applications such as multi-player gaming, peer-to-peer connections, real-
time communications such as instant messaging, or remote assistance (a feature in
Windows XP), you should enable UPnP.
Figure 5-5
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NETGEAR RangeMax™ NEXT Wireless Router WNR834B User Manual
Fine-Tuning Your Network
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v2.1, July 2007
Advertisement Period
The Advertisement Period is how often the router will broadcast its UPnP information. This
value can range from 1 to 1440 minutes. The default period is 30 minutes. Shorter durations
ensure that control points have current device status at the expense of additional network
traffic. Longer durations may compromise the freshness of the device status but can
significantly reduce network traffic.
Advertisement Time To Live
The time to live for the advertisement is measured in hops (steps) for each UPnP packet sent.
The time to live hop count is the number of steps a broadcast packet is allowed to propagate
for each UPnP advertisement before it disappears. The number of hops can range from 1 to
255. The default value for the advertisement time to live is 4 hops, which should be fine for
most home networks. If you notice that some devices are not being updated or reached
correctly, then it may be necessary to increase this value.
UPnP Portmap Table
The UPnP Portmap Table displays the IP address of each UPnP device that is currently
accessing the router and which ports (Internal and External) that device has opened. The UPnP
Portmap Table also displays what type of port is open and whether that port is still active for
each IP address.
3.
Click Apply to save your settings.
Optimizing Wireless Performance
The speed and operating distance or range of your wireless connection can vary significantly based
on the physical placement of the wireless router. You should choose a location for your router that
will maximize the network speed.
The following list describes how to optimize wireless router performance.
Note:
Failure to follow these guidelines can result in significant performance degradation
or inability to wirelessly connect to the router. For complete range and
performance specifications, please see
“Wireless Communications” in
Appendix B
.
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NETGEAR RangeMax™ NEXT Wireless Router WNR834B User Manual
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Identify critical wireless links.
If your network has several wireless devices, decide which wireless devices need the highest
data rate, and locate the router near them. Many wireless products have automatic data-rate
fallback, which allows increased distances without losing connectivity. This also means that
devices that are further away may be slower. Therefore, the most critical links in your network
are those where the traffic is high and the distances are great. Optimize those first.
Choose placement carefully
.
For best results, place your router:
Near the center of the area in which your computers will operate.
In an elevated location such as a high shelf where the wirelessly connected computers
have line-of-sight access (even if through walls).
Avoid obstacles to wireless signals.
Keep wireless devices at least two feet from large metal fixtures such as file cabinets,
refrigerators, pipes, metal ceilings, reinforced concrete, and metal partitions.
Keep away from large amounts of water such as fish tanks and water coolers.
Reduce interference.
Avoid windows unless communicating between buildings.
Place wireless devices away from various electromagnetic noise sources, especially those in
the 2400–2500 MHz frequency band. Common noise-creating sources are:
Computers and fax machines (no closer than one foot)
Copying machines, elevators, and cell phones (no closer than 6 feet)
Microwave ovens (no closer than 10 feet)
Choose your settings.
Use a scanning utility to determine what other wireless networks are operating nearby, and
choose an unused channel.
Turn off SSID Broadcast, and change the default SSID. Other nearby devices may
automatically try to connect to your network several times a second, which can cause
significant performance reduction.
Use WMM to improve the performance of voice and video traffic over the wireless link.
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NETGEAR RangeMax™ NEXT Wireless Router WNR834B User Manual
Fine-Tuning Your Network
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v2.1, July 2007
Configuring Quality of Service (QoS)
QoS is an advanced feature that can be used to prioritize some types of traffic ahead of others. The
WNR834B router can provide QoS prioritization over the wireless link and on the Internet
connection. To configure QoS, use the QoS Setup menu.
From the main menu of the browser interface, under Advanced, click QoS Setup. The QoS Setup
menu appears:
Figure 5-6

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