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106
Advanced
The Advanced page allows you to configure advanced wireless settings. Most users will
have no need to change these settings.
To access the
Advanced
page:
1
Click
Wireless
in the menu bar.
2
Then click the
Advanced
submenu.
Figure 33 shows an example of the menu and Table 26 describes the items you can
select.
Figure 33. Example of Advanced Page
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107
Table 28. Advanced Menu Option
Option
Description
54g
TM
Mode
Auto by default.
XPress
TM
Technology
When Xpress is turned on, aggregate throughput can
improve significantly.
802.11n Protection
The 802.11g standards provide a protection method so
802.11g and 802.11b devices can co-exist in the same
network without “speaking” at the same time. Do not disable
802.11n protection if there is a possibility that 802.11b or
802.11g devices will use your wireless network. In
Auto
mode, the wireless devices use RTS/CTS to improve
802.11n performance in mixed 802.11g/802.11b networks.
Turn protection off to maximize 802.11n throughput under
most conditions.
Short Guard Interval
Provides compatibility with certain devices that do not meet
802.11 specifications.
Basic Rate Set
Select the wireless transmission rate to a particular speed
or leave it as default (Auto) to allow the AP adjusts speed
automatically.
Multicast Rate
Specify the rate at which multicast packets are transmitted
and received on your wireless network. Multicast packets
are used to send a single message to a set of recipients in a
defined group. Teleconferencing, videoconferencing and
group email are some examples of multicast applications.
Specifying a high multicast rate may improve performance
of multicast features. The rates are in Mbps. You can select
Automatic
,
1
,
2
,
5.5
,
6
,
9
,
11
,
12
,
18
,
24
,
36
,
48
and
54
.
NPHY Rate
Set the Physical Layer (NPHY) rate. These rates are only
applicable when the
802.11n mode
is configured as
Automatic
.
Beacon Interval
A beacon is a packet broadcast by the router to synchronize
the wireless network. The default interval is 100 ms.
DTIM Interval
Interval of the Delivery Traffic Indication Message (DTIM). A
DTIM field is a countdown field informing clients of the next
window for listening to broadcast and multicast messages.
When the router has buffered broadcast or multicast for
associated clients, it sends the next DTIM with a DTIM
Interval value. Its clients hear the beacons and awaken to
receive the broadcast and multicast message. The default
value is 1.
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108
Fragmentation Threshold
This value specifies the maximum size for a packet before
data is fragmented into multiple packets. If you experience
a high packet error rate, you may slightly increase the
fragmentation threshold. Setting the fragmentation
threshold too low may result in poor network performance.
Only minor reduction of the default value is recommended.
In most cases, it should remain at its default value of 2346.
RTS Threshold
Using this setting can regulate your wireless network if you
experience any inconsistent data flow. Make only minor
adjustments to the default value of 2347.
Wireless Multicast
Forwarding (WMF)
Enable or disable Multicasting over the wireless network.
Access Control
This page allows you to control which wireless clients can access your wireless network.
It also provides information about wireless clients connected to your access point.
To access the
Access Control
page:
1
Click
Wireless
in the menu bar.
2
Then click the
Access Control
submenu.
Figure 34 shows an example of the menu and Table 27 describes the items you can
select.
Figure 34. Example of Access Control Page
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109
Table 29. Access Control Menu Option
Option
Description
Wireless
Interface
Show the wireless interface being used.
MAC Restrict
Mode
Select whether wireless clients with the specified MAC address are
allowed or denied wireless access. To allow all clients, select
Disabled.
MAC
Addresses
Shows the list of wireless client MAC addresses to allow or deny
based on the Restrict Mode setting. Valid MAC address formats is
XX:XX:XX:XX:XX:XX.
Connected
Clients
Shows the list of connected wireless clients. When a client
connects (associates) to the network, it is added to the list; when a
client leaves (disassociates) from the network, it is removed from
the list. For each client, the age (in seconds), estimated average
receive signal strength (in dBm), IP address, and host name are
presented. The age is the amount of time elapsed since data was
transmitted to or received from the client.
WMM (Wi-Fi Multimedia)
The WMM page allows you to configure WMM (Wi-Fi Multimedia) feature. WMM is a
subset of the 802.11e wireless LAN (WLAN) specification that enhances quality of
service (QoS) on a network by prioritizing data packets according to their categories.
WMM enhances QoS at the wireless driver level. It provides a mechanism to prioritize
wireless data traffic to and from the associated (WMM capable) stations.
If you enable the WMM feature, you may need to decide whether or not to broadcast
Cable Modem/Router’s network name. Broadcasting allows you to easily recognize
your wireless network in the list of available networks. Once you have configured your
wireless clients, it is recommended that you disable the broadcasting feature.
To access the
WMM
page:
1
Click
Wireless
in the menu bar.
2
Then click the
WMM
submenu.
Figure 35 shows an example of the menu and Table 28 describes the items you can
select.
Page 110 / 143
110
Figure 35. Example of WMM Page

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