11.3.5.4 vap security encryption (access point)
Description     
With this command, you enable encryption with a fixed (unchanging) WEP key. You can only 
enable or disable encryption if you have selected "Open System" for authentication. All other 
security methods include both authentication and encryption. If you use "Open system" with 
"Encryption" or "Shared Key", you always need to specify the WEP key used for the encryption.
Note
This command is available only in access point mode.
Requirement
● The type of authentication is "open-system".
You are in the Interface Configuration mode of the VAP interface.
The command prompt is as follows: 
cli (config-if-vapX-0-Y)#
Syntax
Call the command without parameter assignment:
vap security encryption
Result 
The encryption is enabled. You can only disable encryption if you have selected "open-
sytem" for authentication
Further notes
You display the settings with the show wlan security <vapX 0/Y> command. 
You disable the encryption with the no vap security encryption command.
You define a WEP key with the wlan security edit key command.
With the vap security default-key (Access Point)command, you configure the 
WEP key used for encryption.
See also
no vap security encryption (access point) (Page 530)
Security and authentication
11.3 WLAN
SCALANCE W770/W730 acc. to IEEE 802.11n Command Line Interface
Configuration Manual, 09/2017, C79000-G8976-C324-08 529