Advanced Configuration
Wireless (802.11b/g)
You can configure the following radio parameters for an 802.11b/g AP:
NOTE
You must reboot the Access Point before any changes to these parameters take effect.
•
Operational Mode:
An 802.11b/g wireless interface can be configured to operate in the following modes:
–
802.11b mode only:
The radio uses the 802.11b standard only.
–
802.11g mode only:
The radio is optimized to communicate with 802.11g devices. This setting will provide
the best results if this radio interface will only communicate with 802.11g devices.
–
802.11b/g mode:
This is the default mode. Use this mode if you want to support a mix of 802.11b and
802.11g devices.
–
802.11g-wifi:
This mode was developed for Wi-Fi compliance testing purposes. It is similar to 802.11g only
mode. (Although this is a valid option, the .11g AP Card is not Wi-Fi certified.)
In general, you should use either 802.11g only mode (if you want to support 802.11g devices only) or 802.11b/g
mode to support a mix of 802.11b and 802.11g devices.
•
Physical Interface Type:
Depending on the Operational Mode, this field reports:
–
For 802.11b mode only: "802.11b (CCK/DSSS 2.4 GHz)"
–
For 802.11g and 802.11g-wifi modes: "802.11g (OFDM/DSSS 2.4 GHz)"
–
For 802.11b/g mode: "802.11b/g (ERP-CCK/DSSS/OFDM 2.4 GHz)"
OFDM stands for Orthogonal Frequency Division Multiplexing; this is the name for the radio technology used by
802.11a devices. DSSS stands for Direct Sequence Spread Spectrum; this is the name for the radio technology
used by 802.11b devices.
•
MAC Address:
This is a read-only field that displays the unique MAC (Media Access Control) address for the
Access Point’s wireless interface. The MAC address is assigned at the factory.
•
Regulatory Domain:
Reports the regulatory domain for which the AP is certified. Not all features or channels are
available in all countries. The available regulatory domains include:
— FCC - U.S./Canada, Mexico, and Australia
— ETSI - Europe, including the United Kingdom, China, and South Korea
— MKK - Japan
— IL - Israel
•
Network Name (SSID):
Enter a Network Name (between 2 and 31 characters long) for the wireless network. You
must configure each wireless client to use this name as well.
•
Auto Channel Select:
The AP scans the area for other Access Points and selects a free or relatively unused
communication channel. This helps prevent interference problems and increases network performance. By default
this feature is enabled; see
for a list of Channels.
•
Frequency Channel:
When Auto Channel Select is enabled, this field is read-only and displays the Access Point’s
current operating channel. When Auto Channel Select is disabled, you can specify the Access Point’s operating
channel. If you decide to manually set the unit’s channel, ensure that nearby devices do not use the same
frequency (unless you are setting up a WDS). Available Channels vary based on regulatory domain. See
•
Transmit Rate:
Select a specific transmit rate for the AP. The values available depend on the Operational Mode.
Auto Fallback is the default setting; it allows the AP to select the best transmit rate based on the cell size.
— For 802.11b only -- Auto Fallback, 1, 2, 5.5, 11 Mbits/sec
— For 802.11g only -- Auto Fallback, 6, 9, 12, 18, 24, 36, 48, 54 Mbits/sec
— For 802.11b/g and 802.11g-wifi -- Auto Fallback, 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbits/sec
•
DTIM Period:
The Deferred Traffic Indicator Map (DTIM) is used with clients that have power management
enabled. DTIM should be left at 1, the default value, if any clients have power management enabled. This
parameter supports a range between 1 and 255.
•
RTS/CTS Medium Reservation:
This parameter affects message flow control and should not be changed under
normal circumstances. Range is 0 to 2347. When set to a value between 0 and 2347, the Access Point uses the
RTS/CTS mechanism for packets that are the specified size or greater. When set to 2347 (the default setting),
RTS/CTS is disabled. See RTS/CTS Medium Reservation for more information.
4-14
