ZyXEL Communications B-2000 User Manual

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ZyAIR B-2000 Wireless LAN Gateway with 4-Port Switch 
3-16 
 
Internet Access 
Table 3-6 Wireless LAN Setup Field Description 
FIELD DESCRIPTION 
EXMAPLE
ESSID
 
The ESSID (Extended Service Set IDentity) identifies the AP the wireless client 
is to associate to. Wireless clients associating to the AP must have the same 
ESSID. Enter a descriptive name up to 32 printable 7-bit ASCII characters.
 
Wireless 
Hide ESSID 
Press [SPACE BAR] and select Yes to hide the ESSID in the outgoing beacon 
frame so a station cannot obtain the ESSID through passive scanning.   
No 
Channel ID 
 
Press [SPACE BAR] to select a channel. This allows you to set the operating 
frequency/channel depending on your particular region. 
Possible choices are CH01 2412MHzCH02 2417MHz, CH03 2422MHz, 
CH04 2427MHz
, CH05 2432MHzCH06 2437MHzCH07 2442MHz, CH08 
2447MHz
CH09 2452MHz, CH10 2457MHz or CH11 2462MHz
 
CH01 
2412MHz 
RTS 
Threshold
 
RTS (Request To Send) threshold (number of bytes) enables RTS/CTS 
handshake. Data with its frame size larger than this value will perform the 
RTS/CTS handshake. Setting this attribute to be larger than the maximum 
MSDU (MAC Service Data Unit) size turns off the RTS/CTS handshake. 
Setting this attribute to zero turns on the RTS/CTS handshake. Enter a value 
between 0 and 2432. 
2432 
Fragment 
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 a 
value between 256 and 2432.
 
2432 
When you have completed this menu, press [ENTER] at the prompt “Press ENTER to confirm or ESC to 
cancel” to save your configuration or press [ESC] to cancel and go back to the previous screen. 
For WEP key configuration, refer to section on WEP Data Encryption.  
3.11.3 Roaming 
A wireless station is a computer with an IEEE 802.11b compliant wireless Network Interface Card (NIC). 
An Access Point (AP) acts as a bridge between the wireless and wired networks. An AP creates its own 
wireless coverage area. A wireless station can associate with a particular access point only if it is within the 
access point’s coverage area. 
In a network environment with multiple access points, wireless stations are able to switch from one access 
point to another as they move between the coverage areas. This is roaming. As the wireless station moves 
from place to place, it is responsible for choosing the most appropriate access point depending on the signal 
strength, network utilization or other factors. 
The roaming feature on the access points allows the access points to relay information about the wireless 
stations to each other. When a wireless station moves from a coverage area to another, it scans and uses the