WPA
WPA (Wi-Fi Protected Access) offers additional privacy by means of dynamic keys, and of-
fers PSK (preshared keys) or Extensible Authentication Protocol (EAP) via 802.1x (e.g. RA-
DIUS) for user authentication.
Authentication using EAP is usually used in large wireless LAN installations, as an authen-
tication instance in the form of a server (e.g. a RADIUS server) is used in these cases. PSK
(preshared keys) are usually used in smaller networks, such as those seen in SoHo (Small
office, Home office). Therefore, all the wireless LAN subscribers must know the PSK, be-
cause it is used to generate the session key.
WPA 2
The extansion and the successor of WPA is WPA 2 . In WPA 2 , the 802.11i standard is im-
plemented for the first time in full.
Access control
You can control which clients can access your wireless LAN via your device by creating an
Access Control List (Access Control oder MAC-Filter). In the Access Control List, you
enter the MAC addresses of the clients that may access your wireless LAN. All other clients
have no access.
Security measures
To protect the data transferred over the WLAN, the following configuration steps should be
carried out in the Wireless LAN->WLAN->Wireless Networks (VSS)->New menu, where
necessary:
• Change the access passwords for your device.
• Set Visible =
&/
. This will exclude all WLAN clients that attempt to establish a
connection with the general value for Network Name (SSID)
"
and do not know the
SSID settings.
• Use the available encryption methods. To do this, select Security Mode =
or
&
and enter the relevant key in the access point under Preshared Key
and in the WLAN clients.
• For transmission of information with very high security relevance, configure Security
Mode =
&
with WPA Mode =
. This method contains encryption
and RADIUS authentication of the client.
• Restrict WLAN access to permitted clients. Enter the MAC addresses of the wireless net-
work cards for these clients in the Allowed Addresses list in the MAC-Filter menu (see
on page 40).
bintec elmeg GmbH
5 Wireless LAN
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