Cisco Catalyst 3560-X Series, Software Configuration Manual

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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-25303-03
Chapter 1 Configuring Switch-Based Authentication
Controlling Switch Access with RADIUS
Starting 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 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.
Beginning in privileged EXEC mode, follow these steps to enable accounting for each Cisco
IOS privilege level and for network services:
To disable accounting, use the no aaa accounting { network | exec } { start-stop } method1... global
configuration command.
Establishing a Session with a Router if the AAA Server is Unreachable
The aaa accounting system guarantee-first command guarantees system accounting as the first record,
which is the default condition. In some situations, users might be prevented from starting a session on
the console or terminal connection until after the system reloads, which can take more than 3 minutes.
To establish a console or Telnet session with the router if the AAA server is unreachable when the router
reloads, use the
no aaa accounting system guarantee-first command.
Displaying the Configuration
To display server statistics, use the show tacacs privileged EXEC command.
Controlling Switch Access with RADIUS
This section describes how to enable and configure the RADIUS, which provides detailed accounting
information and flexible administrative control over authentication and authorization processes.
RADIUS is facilitated through AAA and can be enabled only through AAA commands.
Beginning with Cisco IOS Release 12.2(58)SE, the switch supports RADIUS for IPv6. Information is in
the
“RADIUS Over IPv6” section of the “Implementing ADSL for IPv6” chapter in the Cisco IOS XE
IPv6 Configuration Guide, Release 2 . For information about configuring this feature, see the
“Configuring the NAS” section in the “Implementing ADSL for IPv6” chapter in the Cisco IOS XE IPv6
Configuration Guide, Release 2 .
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2 aaa accounting network start-stop
Enable accounting for all network-related service requests.
Step 3 aaa accounting exec start-stop Enable accounting to send a start-record accounting notice at
the beginning of a privileged EXEC process and a stop-record at the end.
Step 4 end Return to privileged EXEC mode.
Step 5
show running-config Verify your entries.
Step 6 copy running-config startup-config (Optional) Save your entries in the configuration file.