User Manual
36 Configuring the Extricom WLAN System
Table 10. Security Definition Parameters
Field Description
Encryption & Authentication
Choose method Define the method of encryption and authentication.
A combination of encryption and authentication methods may be
selected from the options detailed in the drop-down list.
Encryption cipher
There are three types of encryption ciphers available:
WEP64 – Wired Equivalent Privacy (802.11 encryption
protocol). This is a very basic encryption level. (AKA WEP40)
WEP128 – This encryption is similar to WEP64, but the WEP
keys are longer. (AKA WEP104)
TKIP – Temporal Key Integrity Protocol. This is a more secure
and more advanced method of encryption as a part of the WPA
standard.
AES (CCMP) – Advanced Encryption Standard.(Cipher Block
Chaining Message Authentication Code Protocol) is currently
the most advanced and secured method of WiFi encryption and
is part of 802.11i (WPA2) standard.
Authentication method
Authentication is used to identify if a wireless device is authorized
to connect to the WLAN, and verifies the wireless device’s
identity. Authentication methods (such as specific EAP methods
available in the WPA/WPA2 (RADIUS) option) also verify that the
association process is secured. Authentication utilizing
WPA/WPA2 (RADIUS) can also support encryption key changes.
The following methods are available:
802.1x – if the cipher is WEP or WEP104
WPA/WPA2-PSK or WPA/WPA2 (RADIUS) – if the cipher is
TKIP or AES
Supported protocols: EAP, TLS, TTLS, PEAP, LEAP and MD5
When choosing the encryption cipher and authentication
methods, one should take into account wireless devices’
capabilities.
Any security combination (Encryption and Authentication) can be
selected by the user as a combination of the list and the check
boxes.
The Extricom system supports “WPA2 Mixed Mode”.
This mode permits the coexistence of WPA and WPA2
clients on the same SSID. WPA2 mixed mode allows
“Old” WLAN clients with “New” WLAN clients on
the same SSID during transition period.