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Page 81 / 268 Scroll up to view Page 76 - 80
Chapter 6 Wireless LAN
NBG4604 User’s Guide
81
The following table describes the labels in this screen.
6.5
MAC Filter
The MAC filter screen allows you to configure the NBG4604 to give exclusive
access to up to 16 devices (Allow) or exclude up to 16 devices from accessing the
NBG4604 (Deny). Every Ethernet device has a unique MAC (Media Access Control)
address. The MAC address is assigned at the factory and consists of six pairs of
hexadecimal characters, for example, 00:A0:C5:00:00:02. You need to know the
MAC address of the devices to configure this screen.
Table 28
Network > Wireless LAN > General: WPA-PSK/WPA2-PSK
LABEL
DESCRIPTION
WPA
Compatible
This check box is available only when you select
WPA2-PSK
in the
Security Mode
field.
Select the check box to have both WPA2 and WPA wireless clients be
able to communicate with the NBG4604 even when the NBG4604 is
using WPA2-PSK.
Pre-Shared Key
WPA-PSK/WPA2-PSK
uses a simple common password for
authentication.
Type a pre-shared key from 8 to 63 case-sensitive
ASCII
characters
(including spaces and symbols).
Type a pre-shared key less than 64 case-sensitive
HEX
characters ("0-
9", "A-F").
Group Key
Update Timer
The
Group Key Update Timer
is the rate at which the AP (if using
WPA-PSK/WPA2-PSK
key management) or RADIUS
server (if using
WPA/WPA2
key management) sends a new group key out to all
clients. The re-keying process is the WPA/WPA2 equivalent of
automatically changing the WEP key for an AP and all stations in a
WLAN on a periodic basis. Setting of the
Group Key Update Timer
is
also supported in
WPA-PSK/WPA2-PSK
mode. The default is
600
seconds (10 minutes).
Apply
Click
Apply
to save your changes back to the NBG4604.
Reset
Click
Reset
to reload the previous configuration for this screen.
Page 82 / 268
Chapter 6 Wireless LAN
NBG4604 User’s Guide
82
To change your NBG4604’s MAC filter settings, click
Network
>
Wireless LAN
>
MAC Filter
. The screen appears as shown.
Figure 48
Network > Wireless LAN > MAC Filter
The following table describes the labels in this menu.
Table 29
Network > Wireless LAN > MAC Filter
LABEL
DESCRIPTION
Active
Select
Yes
from the drop down list box to enable MAC address filtering.
Filter Action
Define the filter action for the list of MAC addresses in the
MAC Address
table.
Select
Deny
to block access to the NBG4604, MAC addresses not listed will
be allowed to access the NBG4604
Select
Allow
to permit access to the NBG4604, MAC addresses not listed
will be denied access to the NBG4604.
Set
This is the index number of the MAC address.
MAC
Address
Enter the MAC addresses of the wireless station that are allowed or denied
access to the NBG4604 in these address fields. Enter the MAC addresses in
a valid MAC address format, that is, six hexadecimal character pairs, for
example, 12:34:56:78:9a:bc.
Apply
Click
Apply
to save your changes back to the NBG4604.
Reset
Click
Reset
to reload the previous configuration for this screen.
Page 83 / 268
Chapter 6 Wireless LAN
NBG4604 User’s Guide
83
6.6
Wireless LAN Advanced Screen
Use this screen to allow intra-BSS networking and set the
RTS/CTS Threshold.
Click
Network
>
Wireless LAN
>
Advanced
. The screen appears as shown.
Figure 49
Network > Wireless LAN > Advanced
The following table describes the labels in this screen.
Table 30
Network > Wireless LAN > Advanced
LABEL
DESCRIPTION
Wireless Advanced Setup
RTS/CTS
Threshold
Data with its frame size larger than this value will perform the RTS
(Request To Send)/CTS (Clear To Send) handshake.
Enter a value between 0 and 2432.
Fragmentatio
n Threshold
The threshold (number of bytes) for the fragmentation boundary for
directed messages. It is the maximum data fragment size that can be
sent. Enter an even number between
256
and
2346
.
This field is not available when
Super Mode
is selected.
Beacon
Interval
When a wirelessly networked device sends a beacon, it includes with it a
beacon interval. This specifies the time period before the device sends the
beacon again. The interval tells receiving devices on the network how long
they can wait in low-power mode before waking up to handle the beacon.
This value can be set from 20ms to 1000ms. A high value helps save
current consumption of the access point.
DTIM
Delivery Traffic Indication Message (DTIM) is the time period after which
broadcast and multicast packets are transmitted to mobile clients in the
Active Power Management mode. A high DTIM value can cause clients to
lose connectivity with the network. This value can be set from 1 to 100.
Preamble
A preamble affects the timing in your wireless network. There are two
preamble modes: long and short. If a device uses a different preamble
mode than the NBG4604 does, it cannot communicate with the NBG4604.
Page 84 / 268
Chapter 6 Wireless LAN
NBG4604 User’s Guide
84
6.7
Quality of Service (QoS) Screen
The QoS screen allows you to automatically give a service (such as e-mail, VoIP or
FTP) a priority level.
Click
Network
>
Wireless LAN
>
QoS
. The following screen appears.
Figure 50
Network > Wireless LAN > QoS
CTS
Protection
When set to
None
, the NBG4604 protects wireless communication against
interference.
When set to
Always
, the NBG4604 improves performance within mixed
wireless modes.
Select
Auto
to let the NBG4604 determine whether to turn this feature on
or off in the current environment.
Tx Power
This field controls the transmission power of the NBG4604. When using
the NBG4604 with a notebook computer, select a lower transmission
power level when you are close to the AP in order to conserve battery
power.
Apply
Click
Apply
to save your changes back to the NBG4604.
Reset
Click
Reset
to reload the previous configuration for this screen.
Table 30
Network > Wireless LAN > Advanced
LABEL
DESCRIPTION
Page 85 / 268
Chapter 6 Wireless LAN
NBG4604 User’s Guide
85
The following table describes the labels in this screen.
Table 31
Network > Wireless LAN > QoS
LABEL
DESCRIPTION
WMM QoS Policy
Select
Default
to have the NBG4604 automatically give a service a
priority level according to the ToS value in the IP header of packets
it sends. WMM QoS (Wifi MultiMedia Quality of Service) gives high
priority to voice and video, which makes them run more smoothly.
Select
Application Priority
from the drop-down list box to display
a table of application names, services, ports and priorities to which
you want to apply WMM QoS.
The table appears only if you select
Application Priority
in
WMM
QoS Policy
.
#
This is the number of an individual application entry.
Name
This field displays a description given to an application entry.
Service
This field displays either
FTP
,
WWW
,
E-mail
or a
User Defined
service to which you want to apply WMM QoS.
Dest Port
This field displays the destination port number to which the
application sends traffic.
Priority
This field displays the priority of the application.
Highest
- Typically used for voice or video that should be high-
quality.
High
- Typically used for voice or video that can be medium-quality.
Mid
- Typically used for applications that do not fit into another
priority. For example, Internet surfing.
Low
- Typically used for non-critical “background” applications,
such as large file transfers and print jobs that should not affect
other applications.
Modify
Click the
Edit
icon to open the
Application Priority
Configuration
screen. Modify an existing application entry or
create a application entry in the
Application Priority
Configuration
screen.
Click the
Remove
icon to delete an application entry.
Apply
Click
Apply
to save your changes to the NBG4604.

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