TP-Link Omada ER8411 VPN Router - Manual (Page 194)

Configuring Authentication Overview
User Guide 185
1.2 Portal Authentication Process
The portal authentication process is shown as below:
Figure 1-2 Portal Authentication Process
Client
http://
Visit the Internet
Enter the Username and Password in the login page
Forwards the username and password to the Authentication Server
Returns the authentication result
Returns the authentication result
Visit the Web Server
Returns the authentication login page
Redirect the client to Web Server
Router Web Server Authentication Server
1) The client is connected to the router but not authenticated, and starts to visit the
internet through HTTP;
2) The router redirects the client’s HTTP request to the web server;
3) The client visits the web server;
4) The Web server returns the authentication login page to the client;
5) The client enters the username and password on the authentication login page;
6) The router forwards the username and password to the authentication server;
7) The authentication server returns the authentication result to the router;
8) The router replies to the client with the authentication result;
9) The client visits the internet after the authentication succeeded.
1.3 Supported Features
To configure portal authentication, you need to configure both the web server and the
authentication server. The web server provides the authentication page for login; the
authentication server records the account information and authenticates the clients.