Siemens EF 711 Series Betriebsanweisung PDF herunterladen (Seite 279)

Configuring a VNS

Creating a VNS Using the Wizard

SCALANCE WLC711

User Guide, V8.11, 07/2012, C79000-G8976-C260-03 7-39

WPA Select to configure Wi-Fi Protected Access (WPA v1 and WPA

v2), a security solution that adds authentication to enhanced WEP

encryption and key management.

To enable WPA v1 encryption, select WPA v.1. In the Encryption

drop-down list, select one of the following encryption types:

Auto — The Wireless AP will advertise both TKIP and CCMP

(Counter Mode with Cipher Block Chaining Message

Authentication Code Protocol) for WPAv1. CCMP is an IEEE

802.11i encryption protocol that uses the encryption cipher AES

(Advanced Encryption Standard).

TKIP only — The AP will advertise TKIP as an available

encryption protocol for WPAv1. It will not advertise CCMP.

To enable WPA v2 encryption, select WPA v.2. In the Encryption

drop-down list, click one of the following encryption types:

Auto — The 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).

WPA-PSK AES only — The AP advertises CCMP as an available encryption

protocol. It will not advertise TKIP.

To enable re-keying after a time interval, select Broadcast re-key

interval, then type the time interval after which the broadcast

encryption key is changed automatically. The default is 3600.

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. This will

reduce the level of security for wireless communications.

To enable the group key power save retry, select Group Key

Power Save Retry.

Note:

The group key power save retry is supported only for W78xC

Wireless APs.

In the Pre-shared key box, type the shared secret key to be used

between the wireless device and Wireless AP. The shared secret

key is used to generate the 256-bit key.

Mask/Unmask — Click to display or hide your shared secret key.

Table 7-8 Data VNS Privacy Page - Fields and Buttons (continued)

Field/Button Description

1 2 ... 274 275 276 277 278 279 280 281 282 283 284 ... 491 492

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Siemens EF 711 Series Betriebsanweisung Seite 279