ZyXEL Communications ZyAIR G-3000, User Manual

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ZyAIR G-3000 User’s Guide
Chapter 5 Wireless Configuration and Roaming 64
Hide ESSID Select this check box to hide the ESSID in the outgoing beacon frame so a station
cannot obtain the ESSID through passive scanning using a site survey tool.
Choose Channel
ID
Set the operating frequency/channel depending on your particular region.
To manually set the ZyAIR to use a channel, select a channel from the drop-down
list box. Click MAINTENANCE and then the Channel Usage tab to open the
Channel Usage screen to make sure the channel is not already used by another AP
or independent peer-to-peer wireless network.
To have the ZyAIR automatically select a channel, click
Scan instead.
Refer to the Wizard Setup chapter for more information on channels.
Scan Click this button to have the ZyAIR automatically scan for and select a channel with
the least interference.
RTS/CTS
Threshold
(Request To Send) The threshold (number of bytes) for enabling 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 .
Fragmentation
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 .
WEP Encryption WEP (Wired Equivalent Privacy) provides data encryption to prevent unauthorized
wireless stations from accessing data transmitted over the wireless network.
Select
Disable to allow wireless stations to communicate with the access points
without any data encryption.
Select
64-bit WEP or 128-bit WEP to enable data encryption.
Authentication
Method
Select Auto , Open System or Shared Key from the drop-down list box.
Key 1 to Key 4 If you chose 64-bit WEP in the WEP Encryption field, then enter any 5 characters
(ASCII string) or 10 hexadecimal characters ("0-9", "A-F") preceded by 0x for each
key.
If you chose
128-bit WEP in the WEP Encryption field, then enter 13 characters
(ASCII string) or 26 hexadecimal characters ("0-9", "A-F") preceded by 0x for each
key.
There are four data encryption keys to secure your data from eavesdropping by
unauthorized wireless users. The values for the keys must be set up exactly the
same on the access points as they are on the wireless stations.
The preceding “0x” is entered automatically. You must configure all four keys, but
only one key can be activated at any one time. The default key is key 1.
Enable
Breathing LED
Select this check box to enable the Breathing LED, also known as the ZyAIR LED.
The blue ZyAIR LED is on when the ZyAIR is on and blinks (or breaths) when data is
being transmitted to/from its wireless stations.
Clear the check box to turn this LED off even when the ZyAIR is on and data is being
transmitted/received.
Enable
Spanning Tree
Control (STP)
(R)STP detects and breaks network loops and provides backup links between
switches, bridges or routers. It allows a bridge to interact with other (R)STP -
compliant bridges in your network to ensure that only one path exists between any
two stations on the network. Select the check box to activate STP on the ZyAIR.
Preamble Select a preamble type from the drop-down list menu. Choices are Long , Short and
Dynamic .
See the section on preamble for more information.
Table 12 Wireless
LABEL DESCRIPTION