Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 825
Suppressing AAA Accounting for Null Username Sessions
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- tacacs+: designate the security service. The system supports only TACACS+. Example Dell(conf)#aaa accounting dot1x default start-stop tacacs+ Dell(conf)# tacacs-server host server-address key key Suppressing AAA Accounting for Null Username Sessions When you activate AAA accounting, the system issues accounting records for all users on the system, including users whose username string, because of protocol translation, is NULL. An example of this is a user who comes in on a line where the AAA authentication login method-list none command is applied. To prevent accounting records from being generated for sessions that do not have usernames associated with them, use the following command. • Prevent accounting records from being generated for users whose username string is NULL. CONFIGURATION mode aaa accounting suppress null-username Configuring Accounting of EXEC and Privilege-Level Command Usage The network access server monitors the accounting functions defined in the TACACS+ attribute/value (AV) pairs. • Configure AAA accounting to monitor accounting functions defined in TACACS+. CONFIGURATION mode aaa accounting system default start-stop tacacs+ aaa accounting command 15 default start-stop tacacs+ System accounting can use only the default method list. Example of Configuring AAA Accounting to Track EXEC and EXEC Privilege Level Command Use In the following sample configuration, AAA accounting is set to track all usage of EXEC commands and commands on privilege level 15. Dell(conf)#aaa accounting exec default start-stop tacacs+ Dell(conf)#aaa accounting command 15 default start-stop tacacs+ Configuring AAA Accounting for Terminal Lines To enable AAA accounting with a named method list for a specific terminal line (where com15 and execAcct are the method list names), use the following commands. • Configure AAA accounting for terminal lines. CONFIG-LINE-VTY mode accounting commands 15 com15 accounting exec execAcct Example of Enabling AAA Accounting with a Named Method List Dell(config-line-vty)# accounting commands 15 com15 Dell(config-line-vty)# accounting exec execAcct Security 825
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