ZyXEL ES3500-24HP User Guide - Page 203

AAA Screens

Page 203 highlights

Chapter 25 AAA 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 72 RADIUS vs TACACS+ RADIUS Transport Protocol UDP (User Datagram Protocol) Encryption 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 AAA Screens The AAA screens allow you to enable authentication, authorization, 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, activate authorization and configure accounting settings. Click Advanced Application > AAA in the navigation panel to display the screen as shown. Figure 111 Advanced Application > AAA 25.2.1 RADIUS Server Setup Use this screen to configure your RADIUS server settings. See Section 25.1.2 on page 203 for more information on RADIUS servers and Section 25.3 on page 211 for RADIUS attributes utilized by the ES3500 Series User's Guide 203

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Chapter 25 AAA
ES3500 Series User’s Guide
203
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
AAA Screens
The
AAA
screens allow you to enable authentication, authorization, 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, activate authorization and configure accounting
settings.
Click
Advanced Application
>
AAA
in the navigation panel to display the screen as shown.
Figure 111
Advanced Application > AAA
25.2.1
RADIUS Server Setup
Use this screen to configure your RADIUS server settings. See
Section 25.1.2 on page 203
for more
information on RADIUS servers and
Section 25.3 on page 211
for RADIUS attributes utilized by the
Table 72
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.