Portal Authentication Process
The first thing to do during authentication is to initiate authentication. There are two methods for triggering Portal authentication:
In this mode, a user actively accesses the Portal server for identity authentication. The user accesses the Portal authentication website through a browser, enters the IP address of the Portal server in the browser, and then enters the user name and password on the displayed web page for authentication.
In this mode, a user enters a non-authentication website address and is redirected to the Portal authentication website for authentication
For configuration, please refer to
https://support.huawei.com/hedex/hdx.do?docid=EDOC1100064350&id=dc_cfg_wlan_sec_0083_8