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LANCOM Reference Manual LCOS 3.50 ̈ Chapter 11: Wireless LAN – WLAN
246
Wireless LAN – WLAN
Configuration with
WEBconfig or Telnet
Under WEBconfig or Telnet you can set the operation mode for the physical
WLAN interface under the following paths:
Radio settings
Frequency band,
Subband
When selecting the frequency band on the 'Radio' tab under the physical
interface settings, you decide whether the WLAN card operates in the 2.4 GHz
or in the 5 GHz band (also see ’Standardized radio transmission by IEEE’
→page 203), and thus the available radio channels.
In the 5 GHz band, a subband can also be selected which is linked to certain
radio channels and maximum transmission powers.
In some countries, the use of the DFS method for automatic channel
selection is a legal requirement. Selecting the subband also defines
the radio channels that can be used for the automatic channel
selection.
Channel number
The radio channel selects a portion of the conceivable frequency band for data
transfer.
In the 2.4-GHz band, two separate wireless networks must be at least
three channels apart to avoid interference.
Compatibility mode
Two different wireless standards are based on the 2.4-GHz band: the
IEEE 802.11b standard with a transfer rate of up to 11 Mbps and the
IEEE 802.11g standard with up to 54 Mbps. When 2.4 GHz is selected as the
frequency band, the data transfer speed can be set as well.
Please observe that clients supporting only the slower standards may
not be able to register with the WLAN if the speeds set here are
higher.
The 802.11g/b compatibility mode offers the highest possible speeds and yet
also offers the 802.11b standard so that slower clients are not excluded. In
Configuration tool Menu/Table
WEBconfig Expert configuration ̈ Setup ̈ Interfaces ̈ WLAN-
Interfaces̈ Operation-Settings
Terminal/Telnet
cd /Setup/Interfaces/WLAN-Interfaces/
Operation-Settings