Managing Device Security 
247
 S3300 Smart Managed Pro Switch
Configure TACACS+
TACACS+ provides a centralized user management system, while still retaining consistency 
with RADIUS and other authentication processes. TACACS+ provides the following services:
• Authentication. Provides authentication during login and through user names and 
user-defined passwords. 
• Authorization. Performed at login. When the authentication session is completed, an 
authorization session starts using the authenticated user name. The TACACS+ server 
checks the user privileges.
The TACACS+ protocol ensures network security through encrypted protocol exchanges 
between the device and TACACS+ server.
The TACACS+ folder contains links to the features described in the following sections.
• Configure TACACS+ on page 247
• TACACS+ Server Configuration on page 247
TACACS+ Configuration 
The TACACS+ Configuration screen contains the TACACS+ settings for communication 
between the switch and the TACACS+ server you configure by using the inband 
management port.
 To configure global TACACS+ settings:
1.  Select Security > Management Security > TACACS+ > TACACS+ Configuration.
2.  In the Key String field, specify the authentication and encryption key for TACACS+ 
communications between the switch and the TACACS+ server. 
The valid range is 0–128 characters. The key must match the key configured on the 
TACACS+ server.
3.  In the Connection Timeout field, specify the maximum number of seconds allowed to 
establish a TCP connection between the switch and the TACACS+ server. 
The valid range is 1–30 seconds. Default is 5 seconds.
4.  Click the Apply button.
TACACS+ Server Configuration
Use the TACACS+ Server Configuration screen to configure up to five TACACS+ servers 
with which the switch can communicate.
 To configure TACACS+ server:
1.  Select Security > Management Security > TACACS+ > Server Configuration.
2.  In the TACACS Server field, specify the IP address of the TACACS server.
3.  In the Priority field, specify the priority for the TACAS+ server.