Siemens EF 711 Series Betriebsanweisung Seite 209

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Configuring WLAN Services
Configuring Privacy
SCALANCE WLC711
User Guide, V8.11, 07/2012, C79000-G8976-C260-03 6-13
Dynamic Keys (WEP) Select to configure dynamic keys (WEP) privacy settings.
WPA Select to configure WPA privacy settings.
WPA - PSK Select to configure dynamic keys (WEP) privacy settings.
WPA v.1 Select the checkbox to enable WPA v.1 encryption, and then
select an encryption method:
Auto — If you click Auto, the Wireless AP advertises both TKIP
and CCMP (counter mode with cipher block chaining message
authentication code protocol). CCMP is an IEEE 802.11i
encryption protocol that uses the encryption cipher AES
(Advanced Encryption Standard). Auto is the default.
AES only — If you click AES, the Wireless AP advertises CCMP
as an available encryption protocol. It will not advertise TKIP
This field is available only when configuring WPA and WPA - PSK
privacy settings.
WPA v.2 Select the checkbox to enable WPA v.2 encryption, and then
select an encryption method:
Auto — If you click Auto, the Wireless AP advertises both TKIP
and CCMP (counter mode with cipher block chaining message
authentication code protocol). CCMP is an IEEE 802.11i
encryption protocol that uses the encryption cipher AES
(Advanced Encryption Standard). Auto is the default.
AES only — If you click AES, the Wireless AP advertises
CCMP as an available encryption protocol. It will not advertise
TKIP
This field is available only when configuring WPA and WPA - PSK
privacy settings.
Key Management Options Click one of the following key management options:
None — The mobile units (client devices) perform a complete
802.1x authentication each time they associate or connect to a
Wireless AP.
Opportunistic Keying — Enables secure fast roaming (SFR)
of mobile units. For more information, see Configuring WLAN
Service Privacy on 6-11.
Pre-authentication — Enables seamless roaming. For more
information, see Configuring WLAN Service Privacy on 6-11.
Opportunistic Keying & Pre-auth — For more information,
see Configuring WLAN Service Privacy on 6-11.
Broadcast re-key interval To enable re-keying after a time interval, select the Broadcast re-
key interval box, then type the time interval after which the
broadcast encryption key is changed automatically. The default is
3600 seconds.
If this checkbox is not selected, the Broadcast encryption key is
never changed and the Wireless AP will always use the same
broadcast key for Broadcast/Multicast transmissions which will
reduce the level of security for wireless communications.
Table 6-3 WLAN Services Privacy Tab - Fields and Buttons (continued)
Field/Button Description
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