ZyAIR B-2000 Wireless LAN Gateway with 4-Port Switch

Table 3-6 Wireless LAN Setup Field Description

FIELD

DESCRIPTION

EXMAPLE

 

 

 

ESSID

The ESSID (Extended Service Set IDentity) identifies the AP the wireless client

Wireless

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.

 

Hide ESSID

Press [SPACE BAR] and select Yes to hide the ESSID in the outgoing beacon

No

 

frame so a station cannot obtain the ESSID through passive scanning.

 

 

Press [SPACE BAR] to select a channel. This allows you to set the operating

CH01

 

frequency/channel depending on your particular region.

2412MHz

Channel ID

Possible choices are CH01 2412MHz, CH02 2417MHz, CH03 2422MHz,

 

 

CH04 2427MHz, CH05 2432MHz, CH06 2437MHz, CH07 2442MHz, CH08

 

 

2447MHz, CH09 2452MHz, CH10 2457MHz or CH11 2462MHz.

 

 

RTS (Request To Send) threshold (number of bytes) enables RTS/CTS

2432

RTS

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

 

Threshold

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.

 

Fragment

The threshold (number of bytes) for the fragmentation boundary for directed

2432

messages. It is the maximum data fragment size that can be sent. Enter a

 

Threshold

 

value between 256 and 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

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Internet Access