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ZyAIR B-4000 Hot Spot Gateway
Wireless LAN 18-7
Table 18-1 WIRELESS
LABEL DESCRIPTION
ESSID (Extended Service Set IDentity) The ESSID identifies the Service Set with which a
wireless station is associated. Wireless stations associating to the access point (AP)
must have the same ESSID. Enter a descriptive name (up to 32 printable 7-bit ASCII
characters) for the wireless LAN.
If you are configuring the ZyAIR from a computer connected to the wireless LAN and you
change the ZyAIR’s ESSID or WEP settings, you will lose your wireless connection when
you click Apply. You must then change the wireless settings of your computer to match
the ZyAIR’s new settings.
Channel Select a channel from the drop-down list box depending on your particular region.
WEP
Select Disable to allow all wireless computers to communicate with the access points
without any data encryption.
Select Mandatory to enable WEP data encryption. Then click WEP Key Setup to open a
screen where you can configure the WEP keys on the ZyAIR. Refer to Section 18.3.1.
Beacon Interval Set the number of milliseconds that should pass between sending out a beacon. Enter a
time period between 1 and 1000. The default is 100.
RTS Threshold Enter a value between 0 and 2442 to enable an RTS/CTS handshake to avoid
retransmitting due to hidden nodes. The default is 2432.
Fragmentation
Threshold
Enter a value between 256 and 2446 to enable a fragmentation threshold. This sets the
maximum size of data fragments that can be sent. The default is 2432. Use a low setting
if there is a great deal of radio interference.
DTIM Interval This setting, always a multiple of the beacon period, determines how often the beacon
contains a delivery traffic indication message (DTIM). The DTIM tells client devices that
are set to power-save that a packet is waiting for them. The DTIM Interval’s valid range is
1 to 65535.
Transmission
Rates
The basic transfer rates should be set depending on the speed of your wireless network.
The default setting is 1-2-5.5-11 (Mbps).
Preamble Type
Select either Short Preamble or Long Preamble.
Antenna
Selection
Select Left Antenna if your device has removable antennas and you install a high-gain
antenna on the connector on the left (when you look at the device's rear panel).
Select Right Antenna if your device has removable antennas and you install a high-gain
antenna on the connector on the right (when you look at the device's rear panel).
Select Diversity Antenna (default) to have the device use the antenna that receives the
best signal.