Tenda AX3000 User Manual page 26

Parameter
Key Update Interval
WPA and WPA2

To address the key management weakness of WPA-PSK and WPA2-PSK, the WiFi Alliance puts
forward WPA and WPA2, which use 802.1x to authenticate devices and generate data encryption–
oriented root keys. WPA and WPA2 use the root keys to replace the pre-shared keys that set
manually, but adopt the same encryption process as WPA-PSK and WPA2-PSK.
WPA and WPA2 uses 802.1x to authenticate devices and the login information of a device is
managed by the device. This effectively reduces the probability of information leakage. In addition,
each time a device connects to an AP that adopts the WPA or WPA2 security mode, the RADIUS
server generates a data encryption key and assigns it to the device, which makes it difficult for
attackers to obtain the key. These features of WPA and WPA2 security modes help increase network
security significantly, making WPA and WPA2 the preferred security modes of WiFi networks that
require high security.
Description
It specifies the automatic update interval of a WPA key for data encryption. A shorter
interval results in higher data security.
The value 0 indicates that a WPA key is not updated.
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