Ruckus Wireless ZoneDirector 3000, Руководство пользователя, Страница: 183 / 430

Creating a WLAN
Encryption Options
ZoneDirector 9.8 User Guide, 800-70599-001 Rev B
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• WEP-64 : Provides a lower level of encryption, and is less secure, using shared
key 40-bit WEP encryption.
• WEP-128 : Provides a higher level of encryption than WEP-64, using a shared
104-bit key for WEP encryption. However, WEP is inherently less secure than
WPA2.
• None: No encryption; communications are sent in clear text.
CAUTION! If you set the encryption method to WEP-64 (40 bit) or WEP-128 (104
bit) and you are using an 802.11n AP for the WLAN, the WLAN will operate in
802.11g mode.
Algorithm (Only for WPA2 or WPA-Mixed encryption methods)
• AES : This algorithm provides enhanced security over TKIP, and is the only
encryption algorithm supported by the 802.11i standard. Choose AES encryp-
tion if you are confident that all of your clients will be using 802.11i-compliant
NICs.
• Auto : Automatically selects TKIP or AES encryption based on the client’s
capabilities. Note that since it is possible to have clients using both TKIP and
AES on the same WLAN, only unicast traffic is affected (broadcast traffic must
fall back to TKIP; therefore, transmit rates of broadcast packets from 11n APs
will be at lower 11g rates).
CAUTION! If you set the encryption algorithm to TKIP and you are using an 802.11n
AP for the WLAN, the WLAN will operate in 802.11g mode.
CAUTION! If you set the encryption algorithm to TKIP, the AP will only be able to
support up to 26 clients. When this limit is reached, additional clients will be unable
to associate with the AP.
WEP Key/Passphrase
• WEP Key : WEP methods only. Click in the Hex field and type the required key
text. If the key is for WEP-64 encryption, the key text must consist of 10
hexadecimal characters. If it is for WEP-128 encryption, enter a key 26 charac-
ters in length. Alternatively, click Generate to have ZoneDirector automatically
generate a WEP key.