Configuration Guide Configuring Web Authentication
Enabling DHCP Address Check
Enable DHCP address check.
Ruijie(config)#web-auth dhcp-check
Check whether the configuration is successful.
Ruijie(config)#show running-config
…
web-auth dhcp-check
…
1.4.26 Disabling Link Detection
Configuration Effect
The authentication entries of clients are kept when links are disconnected. The clients can access the Internet again
without authentication if the IP addresses remain unchanged.
You can disable link detection in places where mobile office is required or wireless Web authentication is deployed but
wireless signal is bad.
Notes
Do not disable link detection if clients obtain IP addresses through DHCP and the number of IP addresses in the DHCP
address pool is smaller than the number of clients. If link detection is disabled, the IP address of a client that has logged
out may be obtained by another client, causing a user information error.
If link detection is disabled, a client logout action is triggered only when the user clicks the Logout button on the online
page, the server forces the client offline, or the NAS detects low traffic on the client. It is recommended that you enable
low traffic detection if you need to disable link detection. For details, see the Configuring SCC.
It is recommended that you disable link detection and enable low traffic detection in a wireless environment. The reason
is that the offline rate in a wireless environment is high because wireless connections are easily affected by signal
interference, and disabling link detection helps improve wireless experience.
Configuration Steps
Optional.
Configure Web authentication.
Disable link detection.
Verification
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