Cisco 3845 Software Guide - Page 160

Controlling Switch Access with TACACS+ Chapter 8 Configuring Switch-Based Authentication Configuring TACACS+ Authorization for Privileged EXEC Access and Network Services AAA authorization limits the services available to a user. When AAA authorization is enabled, the switch uses information retrieved from the user's profile, which is located either in the local user database or on the security server, to configure the user's session. The user is granted access to a requested service only if the information in the user profile allows it. You can use the aaa authorization global configuration command with the tacacs+ keyword to set parameters that restrict a user's network access to privileged EXEC mode. The aaa authorization exec tacacs+ local command sets these authorization parameters: • Use TACACS+ for privileged EXEC access authorization if authentication was performed by using TACACS+. • Use the local database if authentication was not performed by using TACACS+. Note Authorization is bypassed for authenticated users who log in through the CLI even if authorization has been configured. Beginning in privileged EXEC mode, follow these steps to specify TACACS+ authorization for privileged EXEC access and network services: Step 1 Step 2 Command configure terminal aaa authorization network tacacs+ Step 3 aaa authorization exec tacacs+ Step 4 Step 5 Step 6 end show running-config copy running-config startup-config Purpose Enter global configuration mode. Configure the switch for user TACACS+ authorization for all network-related service requests. Configure the switch for user TACACS+ authorization if the user has privileged EXEC access. The exec keyword might return user profile information (such as autocommand information). Return to privileged EXEC mode. Verify your entries. (Optional) Save your entries in the configuration file. To disable authorization, use the no aaa authorization {network | exec} method1 global configuration command. Starting TACACS+ Accounting The AAA accounting feature tracks the services that users are accessing and the amount of network resources that they are consuming. When AAA accounting is enabled, the switch reports user activity to the TACACS+ security server in the form of accounting records. Each accounting record contains accounting attribute-value (AV) pairs and is stored on the security server. This data can then be analyzed for network management, client billing, or auditing. 8-16 Cisco ME 3800X and 3600X Switch Software Configuration Guide OL-23400-01