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Page 111 / 159 Scroll up to view Page 106 - 110
DIR-620
Multifunction Wireless Router Supporting WiMAX,
3G GSM/CDMA with Built-in Switch
User Manual
Configuring via Web-based Interface
WMM
On the
Wi-Fi / WMM
page, you can enable the Wi-Fi Multimedia function.
The WMM function implements the QoS features for Wi-Fi networks. It helps to improve the
quality of data transfer over Wi-Fi networks by prioritizing different types of traffic.
To enable the function, select the
WMM
checkbox and click the
Change
button.
Figure 92. The page for configuring the WMM function.
!
All needed settings for the WMM function are specified in the device's system. It is
recommended not to change the default values.
The WMM function allows assigning priorities for four Access Categories (AC):
•
AC_BK
(
Background
), low priority traffic (print jobs, file downloads, etc.).
•
AC_BE
(
Best Effort
), traffic from legacy devices or devices/applications that do not support
QoS.
•
AC_VI
(
Video
).
•
AC_VO
(
Voice
).
Parameters of the Access Categories are defined for both the router itself (in the
Parameters of
Access Point
section) and wireless devices connected to it (in the
Parameters of Station
section).
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111
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Page 112 / 159
DIR-620
Multifunction Wireless Router Supporting WiMAX,
3G GSM/CDMA with Built-in Switch
User Manual
Configuring via Web-based Interface
For every Access Category the following fields are available:
Parameter
Description
Aifsn
Arbitrary Inter-Frame Space Number
. This parameter influences
time delays for the relevant Access Category. The lower the value,
the higher is the Access Category priority.
CWMin/CWMax
Contention Window Minimum/Contention Window Maximum
. Both
fields influence time delays for the relevant Access Category. The
CWMax
field value should not be lower, than the
CWMin
field
value. The lower the difference between the
CWMax
field value
and the
CWMin
field value, the higher is the Access Category
priority.
Txop
Transmission Opportunity
. The higher the value, the higher is the
Access Category priority.
ACM
Admission Control Mandatory
.
If selected, prevents from using the relevant Access Category.
Ack
Acknowledgment
. Answering response requests while transmitting.
Displayed only in the
Parameters of Access Point
section.
If not selected, the router answers requests.
If selected, the router does not answer requests.
When you have configured the parameters, click the
Change
button.
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112
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Page 113 / 159
DIR-620
Multifunction Wireless Router Supporting WiMAX,
3G GSM/CDMA with Built-in Switch
User Manual
Configuring via Web-based Interface
Client
On the
Wi-Fi / Client
page, you can configure the router as a client to connect to a wireless access
point.
As a rule, the client mode is used to connect to a WISP network. All parameters specified on this
page should be provided by your WISP.
Figure 93. The page for configuring the client mode.
To configure the router as a client, select the
Enable client
checkbox. When the checkbox is
selected, the following fields are displayed on the page:
Parameter
Description
SSID
The name of the network to which the router connects.
BSSID
The unique identifier of the network to which the router connects.
Network Authentication
The authentication type of the network to which the router connects.
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113
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Page 114 / 159
DIR-620
Multifunction Wireless Router Supporting WiMAX,
3G GSM/CDMA with Built-in Switch
User Manual
Configuring via Web-based Interface
When the
Open
or
Shared
authentication type is selected, the following fields are available:
Parameter
Description
Enable Encryption WEP
The checkbox activating WEP encryption. When the checkbox is
selected, the
Default Key ID
field and four
Encryption Key
WEP
fields are displayed on the page. For the
Shared
authentication type the checkbox is always selected.
Default Key ID
The number of the key (from first to fourth) which will be used for
WEP encryption.
Encryption Key WEP (1-
4)
Keys for WEP encryption. The router uses the key selected from the
Default Key ID
drop-down list. It is required to specify all the
fields. You can specify keys containing 5 or 13 symbols (use digits
and/or Latin characters).
When the
WPA-PSK
,
WPA2-PSK
, or
WPA-PSK/WPA2-PSK mixed
authentication type is
selected, the following fields are available:
Parameter
Description
WPA Encryption
An encryption method:
TKIP
,
AES
, or
TKIP+AES
.
Encryption Key PSK
A key for WPA encryption. The key can contain digits and/or Latin
characters.
When you have configured the parameters, click the
Change
button.
In addition, when the
Enable client
checkbox is selected, the list of available wireless networks is
displayed on the page. The
Unknown wireless networks
field shows the number of hidden
wireless networks.
To view the latest data on the available wireless networks, click the
Search
button.
To connect to a wireless network from the list, select the needed network. Upon that the relevant
values are automatically inserted in the
SSID
,
BSSID
, and
Network Authentication
fields.
For the
Open
authentication type with no encryption, click the
Change
button.
For the
Open
authentication type with encryption and the
Shared
authentication type, select a
needed value from the
Default Key ID
drop-down list, fill in 4
Encryption Key WEP
fields, and
click the
Change
button.
For the
WPA-PSK
,
WPA2-PSK
, or
WPA-PSK/WPA2-PSK mixed
authentication types, fill in
the
Encryption Key PSK
field and click the
Change
button.
After clicking the
Change
button, the wireless channel of DIR-620 will switch to the channel of
the wireless access point to which you have connected.
If the router is connected to the selected network successfully, the green indicator appears to the
right of the network's SSID in the table.
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Page 115 / 159
DIR-620
Multifunction Wireless Router Supporting WiMAX,
3G GSM/CDMA with Built-in Switch
User Manual
Configuring via Web-based Interface
After configuring the device as a client, you need to create a WAN connection with relevant
parameters for the
WiFiClient
port.
Page
115
of 159

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