ZyXEL MI-7248 User Guide - Page 160
Authentication and Accounting Screens
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Chapter 28 Authentication and Accounting 28.1.2 RADIUS and TACACS+ RADIUS and TACACS+ are security protocols used to authenticate users by means of an external server instead of (or in addition to) an internal device user database that is limited to the memory capacity of the device. In essence, RADIUS and TACACS+ authentication both allow you to validate an unlimited number of users from a central location. The following table describes some key differences between RADIUS and TACACS+. Table 54 RADIUS vs TACACS+ RADIUS TACACS+ Transport Protocol UDP (User Datagram Protocol) TCP (Transmission Control Protocol) Encryption Encrypts the password sent for authentication. All communication between the client (the switch) and the TACACS server is encrypted. 28.2 Authentication and Accounting Screens The Authentication and Accounting screens allow you to enable authentication, accounting or all of them on the switch. First, configure your authentication and accounting server settings (RADIUS, TACACS+ or both) and then set up the authentication priority and accounting settings. Click Advanced Application > Auth and Acct in the navigation panel to display the screen as shown. Figure 70 Authentication and Accounting 28.2.1 RADIUS Server Setup Use this screen to configure your RADIUS server settings. See Section 28.1.2 on page 160 for more information on RADIUS servers. Click on the RADIUS Server Setup link in the Authentication and Accounting screen to view the screen as shown. 160 MS-7206 User's Guide