ZyXEL VES1724-56B2 User Guide - Page 237

Authentication and Accounting Screens

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Chapter 25 Authentication and Accounting 25.1.2 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 101 RADIUS vs. TACACS+ Transport Protocol Encryption RADIUS UDP (User Datagram Protocol) Encrypts the password sent for authentication. TACACS+ TCP (Transmission Control Protocol) All communication between the client (the Switch) and the TACACS server is encrypted. 25.2 Authentication and Accounting Screens To enable authentication on the Switch. First, configure your authentication 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 143 Advanced Application > Auth and Acct 25.2.1 RADIUS Server Setup Use this screen to configure your RADIUS server settings. See Section 25.1.2 on page 237 for more information on RADIUS servers and Section 25.3 on page 245 for RADIUS attributes utilized by the VES1724-56 User's Guide 237

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Chapter 25 Authentication and Accounting
VES1724-56 User’s Guide
237
25.1.2
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+.
25.2
Authentication and Accounting Screens
To enable authentication on the Switch. First, configure your authentication 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 143
Advanced Application > Auth and Acct
25.2.1
RADIUS Server Setup
Use this screen to configure your RADIUS server settings. See
Section 25.1.2 on page 237
for more
information on RADIUS servers and
Section 25.3 on page 245
for RADIUS attributes utilized by the
Table 101
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.