Wireless LAN – WLAN
BAT54-Rail/F..
Release
7.54
06/08
3.4
Configuration of WLAN parameters
59
D The WEP key 1, that applies only to its respective logical WLAN interface,
can be entered in different ways depending on the key length. Rules of
the entry of the keys can be found in the description of the WEP group key
’Rules for entering WEP keys’ → page 62.
WPA session key type
If '802.11i (WPA)-PSK' has been entered as the encryption method, the pro-
cedure for generating a session or group key can be selected here:
D AES – the AES method will be used.
D TKIP – the TKIP method will be used.
D AES/TKIP – the AES method will be used. If the client hardware does not
support the AES method, TKIP will be used.
Authentication
If the encryption method was set as WEP encryption, two different methods
for the authentication of the WLAN client are available:
D The 'Open system' method does not use any authentication. The data
packets must be properly encrypted from the start to be accepted by the
access point.
D With the 'Shared key' method, the first data packet is transmitted unen-
crypted and must be sent back by the client correctly encrypted. This
method presents potential attackers with at least one data packet that is
unencrypted.
Default key
If WEP encryption is selected, the access point can select from four different
WEP keys for each logical WLAN interface:
D Three WEP keys for the physical interface
D An additional WEP key particular to each logical WLAN interface
The private WEP settings are used to set the additional key for each logical
WLAN interface (see 'Key 1/passphrase'). You should also select which of
the four keys is currently to be used for the encryption of the data (default
key). This setting can be used to change the key frequently, so increasing se-
curity.
Rules of the entry of the keys can be found in the description of the WEP
group key ’Rules for entering WEP keys’ → page 62.
Configuration with LANconfig
For configuration with LANconfig you will find the private WEP settings under
the configuration area 'WLAN Security' on the '802.11i/WEP' tab.
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