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LANCOM Reference Manual LCOS 3.50 ̈ Chapter 11: Wireless LAN – WLAN
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Wireless LAN – WLAN
apply to all of the logical wireless networks supported by this card. These
parameters include, for example, the transmitting power of the antenna
and the operating mode of the WLAN card (access point or client).
̈ Other parameters are related solely to the logical wireless network that is
supported by a physical interface. These include, for example, the SSID or
the activation of encryption, either 802.11i with AES or WPA with TKIP or
WEP.
̈ A third group of parameters affect the wireless network operation, but are
not significant only to WLANs. These include, for example, the protocol
filter in the LAN bridge.
11.4.1 WLAN security
In this part of the configuration, you can place limitations on the
communications available to the users in the wireless network. This is done by
limiting the data transfer between user groups according to individual
stations or the protocol being used. Further, the key for the WLAN encryption
is set here.
General settings
Communications
between the WLAN
clients
Depending on the application, it may be required that the WLAN clients
connected to an access point can—or expressly cannot—communicate with
other clients. You can centrally define the permissible communication for all
physical and logical networks, and consider the three following cases in doing
so:
̈ Allow data traffic: This setting allows all WLAN clients to communicate
with other stations in their own and in other available wireless networks.
̈ Do not allow data traffic between stations that are logged on to this
access point: In this case, WLAN clients can only communicate with
mobile stations located in other available wireless networks, but not with
the stations in their own WLAN.
̈ Do not allow data traffic: This last variant prevents all communications
between the WLAN clients.
Roaming
In addition to controlling the communication between the clients, you can
define whether the mobile stations in the wireless network can change to a
neighbouring access point (roaming).
Monitor stations
In particular for public WLAN access points (public spots), the charging of
usage fees requires the recognition of stations that are no longer active.
Monitoring involves the access point regularly sending packets to logged-in