(in this case, start and stop records for specific events) are used on serial lines using PPP. If the RADIUS server fails to respond, accounting services are handled by a TACACS+ server. • The username command defines the username and password to be used for the PPP Password Authentication Protocol (PAP) caller identification. • The tacacs server command defines the name of the TACACS+ server host. • The key command defines the shared secret text string between the network access server and the TACACS+ server host. • The radius server command defines the name of the RADIUS server host.
• The key command defines the shared secret text string between the network access server and the RADIUS server host. • The interface group-async command selects and defines an asynchronous interface group. • The group-range command defines the member asynchronous interfaces in the interface group. • The encapsulation ppp command sets PPP as the encapsulation method used on the specified interfaces. • The ppp authentication chap dialins command selects Challenge Handshake Authentication Protocol (CHAP) as the method of PPP authentication and applies the “dialins” method list to the specified interfaces.
• The ppp authorization network1 command applies the blue1 network authorization method list to the specified interfaces. • The ppp accounting network2 command applies the red1 network accounting method list to the specified interfaces. • The line command switches the configuration mode from global configuration to line configuration and identifies the specific lines being configured. • The autoselect ppp command configures the Cisco IOS XE software to allow a PPP session to start up automatically on these selected lines. • The autoselect during-login command is used to display the username and password prompt without pressing the Return key.
After the user logs in, the autoselect function (in this case, PPP) begins. • The login authentication admins command applies the admins method list for login authentication. • The modem dialin command configures modems attached to the selected lines to accept only incoming calls. The show accounting command yields the following output for the preceding configuration: Active Accounted actions on tty1, User username2 Priv 1 Task ID 5, Network Accounting record, 00:00:52 Elapsed task_id=5 service=ppp protocol=ip address=10.0.0.98 The table below describes the fields contained in the preceding output. Table 4: show accounting Field Descriptions Configuring Accounting Example:
Configuring a Named Method List Field Description Active Accounted actions on Terminal line or interface name user with which the user logged in. Configuring Accounting 23