70
Item Description
GTK User Down Status
Enable refreshing the GTK when some client goes offline.
By default, the GTK is not refreshed when a client goes off-line.
Configuring security settings for crypto type wireless service
1. Select Interface Setup > Wireless > Access Service from the navigation tree.
2. Click the icon for the target crypto type wireless service.
Figure 47 Configuring security settings for crypto type wireless service
Table 47 Configuration items
Item Description
Authentication
Type
Link authentication method, which can be:
• Open-System—No authentication. With this authentication mode enabled, all the
clients will pass the authentication.
• Shared-Key—The two parties must have the same shared key configured for this
authentication mode. You can select this option only when WEP encryption mode
is used.
• Open-System and Shared-Key—You can select both open-system and
shared-key authentication.
Cipher Suite
Encryption mechanisms supported by the wireless service, which can be:
• CCMP—Encryption mechanism based on the AES encryption algorithm.
• TKIP—Encryption mechanism based on the RC4 algorithm and dynamic key
management.
• CCMP and TKIP—You can select both CCMP and TKIP encryption.
Security IE
Wireless service type (IE information carried in the beacon or probe response frame):
• WPA—Wi-Fi Protected Access, a security mechanism before the 802.11i protocol.
• WPA2—Security mechanism defined in 802.11i, also known as the Robust
Security Network (RSN) security mechanism, which is more secure than WEP and
WPA.
• WPA and WPA2—You can select both WPA and WPA2.
Encryption
WEP
• wep40—WEP40 key option.
• wep104—WEP104 key option.
• wep128—WEP128 key option.
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