User`s guide

Chapter 8 Wi-Fi Screens
LAN-Cell 2 User’s Guide
167
The following table describes the labels in this screen.
Table 56 WIRELESS > Wi-Fi
LABEL DESCRIPTION
Enable Wi-Fi
Card
The internal Wi-Fi access point is turned off by default. Before you enable the
wireless LAN you should configure some security by setting MAC filters and/or 802.1x
security; otherwise your wireless LAN will be vulnerable upon enabling it. Select the
check box to enable the wireless LAN.
Bridge to Select LAN to use the Wi-Fi card as part of the LAN.
Select DMZ to use the Wi-Fi card as part of the DMZ.
Select WLAN to use the Wi-Fi card as part of the WLAN.
The LAN-Cell restarts after you change the Wi-Fi card setting.
Note: If you set the Wi-Fi card to be part of the LAN or DMZ, you can
still use wireless access. The firewall will treat the Wi-Fi card as
part of the LAN or DMZ respectively.
802.11 Mode Select 802.11b Only to allow only IEEE 802.11b compliant WLAN devices to
associate with the LAN-Cell.
Select 802.11g Only to allow only IEEE 802.11g compliant WLAN devices to
associate with the LAN-Cell.
Select 802.11b+g to allow both IEEE802.11b and IEEE802.11g compliant WLAN
devices to associate with the LAN-Cell. The transmission rate of your LAN-Cell might
be reduced.
Select 802.11a Only to allow only IEEE 802.11a compliant WLAN devices to
associate with the LAN-Cell.
Choose
Channel ID
Set the operating frequency/channel depending on your particular region. To manually
set the LAN-Cell to use a channel, select a channel from the drop-down list box. To
have the LAN-Cell automatically select a channel, click Scan instead.
Scan Click this button to have the LAN-Cell automatically select the wireless channel with
the lowest interference.
Super Mode Select this to improve data throughput on the WLAN by enabling fast frame and
packet bursting.
At the time of writing, this works only when the wireless client is using an Atheros card.
RTS/CTS
Threshold
This is the threshold (number of bytes) for enabling RTS/CTS handshake. Data with a
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. Enter a value between 256 and 2346.
If you select Super Mode, this field is grayed out and the LAN-Cell uses 2346
automatically.
Fragmentation
Threshold
This is 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 2346.
If you select Super Mode, this field is grayed out and the LAN-Cell uses 2346
automatically.
Output Power Set the output power of the LAN-Cell in this field. If there is a high density of APs in an
area, decrease the output power to reduce interference with other APs. Select one of
the following 100% (full power), 50%, 25%, 12.5% or min (minimum). See the product
specifications for more information on your LAN-Cell’s output power.
Enable
Roaming
Roaming allows wireless stations to switch from one access point to another as they
move from one coverage area to another. Select this checkbox to enable roaming on
the LAN-Cell if you have two or more LAN-Cells on the same subnet.
Note: All APs on the same subnet and the wireless clients must have
the same SSID to allow roaming.