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WNHDE111 5GHz Wireless-N HD Access Point/Bridge User Manual
Customizing Your Wireless Network
5-3
v1.1, May 2008
Using the DHCP Server
For most applications, the default DHCP and TCP/IP settings of the WNHDE111 are satisfactory.
Click the link to the online document
“TCP/IP Networking Basics” in Appendix B
for an
explanation of DHCP and information about how to assign IP addresses for your network.
By default, the DHCP server of WNHDE111 is disabled. You can enable it to assign IP, DNS
server, and default gateway addresses to all computers connected to the LAN. The assigned default
gateway address is the LAN address of the router. The router assigns IP addresses to the attached
computers from a pool of addresses specified in this screen. Each pool address is tested before it is
assigned to avoid duplicate addresses on the LAN.
Specify the pool of IP addresses to be assigned by setting the starting IP address and ending IP
address. These addresses should be part of the same IP address subnet as the router’s LAN IP
address.
Wireless Repeating (Also Called WDS)
The Wireless-N AccessPoint/Bridge can be used with a wireless access point (AP) to build large
bridged wireless networks. Wireless repeating is a type of Wireless Distribution System (WDS).
To use WDS, the following conditions must be met for all APs:
•
The APs must use the same SSID, wireless channel, and encryption mode.
•
The APs must be on the same LAN IP subnet. That is, all the AP LAN IP addresses are in the
same network.
Warning:
If two DHCP servers in a network are configured to give out conflicting
addresses, the network will crash an none of the devices on the network will
be able to use it until one of the DHCP servers is removed from the network.
Be sure to avoid DHCP server conflicts with the DHCP server in your router
by having them manage different address ranges in the same subnet.
Warning:
If you use the wireless repeating function, your options for wireless security
are limited to None or WEP. For more information about wireless security, see
Chapter 4, “Securing My Wireless.”
Also, if the WPA security option is
enabled, the WDS Enable checkbox is hidden.
Page 52 / 82
WNHDE111 5GHz Wireless-N HD Access Point/Bridge User Manual
5-4
Customizing Your Wireless Network
v1.1, May 2008
•
All LAN devices (wired and wireless computers) must be configured to operate in the same
LAN network address range as the APs.
•
The wireless MAC address of each target AP must be entered in Advanced Wireless menu
WDS AP MAC Address field. One WNHDE111 can connect to 5 other units.
Once you have input the WDS configuration settings, be sure to click
Apply
to save your changes.
Page 53 / 82
6-1
v1.1, May 2008
Chapter 6
Fine-Tuning Your Network
This chapter describes how to modify the configuration of the 5 GHz Wireless-N HD Access
Point/Bridge WNHDE111 to allow specific applications to access the Internet or to be accessed
from the Internet, and how to make adjustments to enhance your network’s performance.
This chapter includes the following sections:
•
“Optimizing Wireless Performance” on page 6-1
•
“Wireless Intelligent Stream Handling (WISH)” on page 6-3
•
“Using WMM QoS for Wireless Multimedia Applications” on page 6-5
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.
•
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 loss of connectivity. This also means that
devices that are farther away might 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.
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, click the link to the online document
“Wireless
Networking Basics” in Appendix B
.
Page 54 / 82
WNHDE111 5GHz Wireless-N HD Access Point/Bridge User Manual
6-2
Fine-Tuning Your Network
v1.1, May 2008
–
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 2 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 1 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 might
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.
Page 55 / 82
WNHDE111 5GHz Wireless-N HD Access Point/Bridge User Manual
Fine-Tuning Your Network
6-3
v1.1, May 2008
Wireless Intelligent Stream Handling (WISH)
WISH is an advanced feature that can be used to prioritize some types of traffic ahead of others.
WISH prioritization applies to the wireless link only.
You can give prioritized access to the following types of traffic:
•
For specific applications by traffic type
•
For specific online games by port addresses
•
From a specific device by IP addresses
To specify prioritization of traffic, you must create a rule for the type of traffic and add the rule to
the WISH Rules List in the WISH screen.
From the main menu of the browser interface, under Advanced, select
WISH
.
Figure 6-1

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