Getnet Router GR-124W User Manual

 
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On this page, you may configure advanced wireless parameters, such as beacon 
interval, data beacon rate, and Tx power. 
 
Note: 
The advanced wireless setting is only for advanced user. For the common user, do 
not change any setting on this page. 
 
 
 
  Advanced Wireless  

 
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The parameters of Advanced Wireless are described as follows: 
Field Description 
BG Protection 
Mode You may select On, Off, or Auto. The default BG 
protection mode is Auto. 
Beacon Interval  By default, wireless beacon signal sends data to 
station every other 100 ms. The range is 20~999. 
Data Beacon Rate 
(DTIM)  The default DTIM is 1ms. The range is 1~255. 
Fragment 
Threshold  The default fragment threshold is 2346. The range is 
256~2346. 
RTS Threshold  The default RTS threshold is...

 
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Field Description 
network traffic is dense should use shorter 
preambles. 
Short Preamble is mainly applied to the efficiency 
improvement of real- time applications, such as 
streaming video, and Voice-Over-IP telephony. 
Short Slot Enable or disable short slot. 
Tx Burst  Tx Burst can be used to improve the efficiency of 
data transmission. It can make system transmit 
more data during a period of time. 
Pkt_Aggregate  Pkt_Aggregate can aggregate multiple data packets 
together for improving the...

 
59    Multicast-to-Unicast Converter 
 
 
Enable or disable Multicast-to-Unicast. After enabling this function, the transmission 
quality of wireless multicast stream can be improved. 
  About WMM 
- WMM Access Categories 
At present, WMM defines traffic into 4 access categories. 
 
 
AC_VO: Voice (highest priority) 
AC_VI: Video (high priority) 
AC_BE: Best effort (medium priority) 
AC_BK: Background (low priority) 
802.11 uses DCF (Distributed Coordination Function) scheme of the CSMA/CA 
(Carrier...

 
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When each priority queue waits for sending packets, it has to wait a fixed time AIFSN 
and a random time CW. They define time values by multiple time slots. For 802.11b, 
its time slot is 20ms. The time slot of 802.11a and 802.11g is 9 ms. CW insures the 
random delay time of DCF, so that the packets collision among the devices with the 
same access category can be avoided. If collision occurs, CW is doubled until it 
exceeds its maximum value. After every successful transmission, CW returns to the...

 
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Field Description 
Aifsn  Aifsn (Arbitrary Inter-Frame Space Number). This 
parameter influences the delay time of WMM access 
category. If you use voice or video service, you’d 
better set this parameter to be smaller in the fields of 
AC_VI and AC_VO. If it is E-mail or Web service, 
you should set a bigger value in the fields of AC_BE 
and AC_BK. 
Cwmin Cwmin (Mini. Contention Window) also influences 
the delay time of WMM access category. The 
difference between AC_VI and AC_VO should be...

 
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Step3 Enable the DLS function of wireless network cards. Enter the MAC address 
of wireless card A on the WMM page of the wireless network card B, and 
then click the Apply button. 
 
 
Step4 If DLS succeeds, you can view the MAC address of wireless card A on the 
WMM page of wireless card B, and vice versa. 
  

 
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5.4.3   Security 
Click Wireless > Security to display the Wireless Security/Encryption Settings 
page. 
 
 
This page allows you to configure wireless security modes and set the encryption 
keys, to prevent unauthorized access and monitoring. 
  Select SSID 
 
 
SSID choice: select SSID that you want to configure. 
  Security Mode 
This page provides 10 types of security modes, including OPEN, SHARED, 
WEPAUTO, WPA-Enterprise, WPA-PSK, WPA2-Enterprise, WPA2-PSK, 
WPA-PSK/WPA2PSK,...

 
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The parameters of OPEN mode are described as follows: 
Field Description 
Security 
Mode Select OPEN. 
Default Key  Select a key as the default key. 
WEP Keys 
WEP Key 
(1/2/3/4) Set 64-bit or 128-bit key. The key format is Hex or ASCII. 
 
 
 
 
- SHARED  

 
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The parameters of SHARED mode are described as follows: 
Field Description 
Security 
Mode Select SHARED. 
Encrypt 
Ty p e  Only WEP is provided. 
Default Key  Select a key as the default key. 
WEP Keys 
(WEP 
Key1/2/3/4) Set 64-bit or 128-bit key. The key format is Hex or ASCII. 
 
 
 
 
 
 
 
- WEPAUTO