AAA for Telnet users by an HWTACACS server

As shown in Figure 10, configure the switch to use the HWTACACS server to provide authentication, authorization, and accounting services for Telnet users.

Set the shared keys for secure communication with the HWTACACS server to expert. Configure the switch to remove the domain name from a username before sending the username to the HWTACACS server.

# Assign IP addresses to the interfaces. (Details not shown.)

# Enable the Telnet server on the switch.

<Switch> system-view
[Switch] telnet server enable

# Configure the switch to use AAA for Telnet users.

[Switch] user-interface vty 0 4
[Switch-ui-vty0-4] authentication-mode scheme
[Switch-ui-vty0-4] quit

# Create HWTACACS scheme hwtac.

[Switch] hwtacacs scheme hwtac

# Specify the primary authentication server.

[Switch-hwtacacs-hwtac] primary authentication 10.1.1.1 49

# Specify the primary authorization server.

[Switch-hwtacacs-hwtac] primary authorization 10.1.1.1 49

# Specify the primary accounting server.

[Switch-hwtacacs-hwtac] primary accounting 10.1.1.1 49

# Set the shared keys for secure authentication, authorization, and accounting communication to expert.

[Switch-hwtacacs-hwtac] key authentication simple expert
[Switch-hwtacacs-hwtac] key authorization simple expert
[Switch-hwtacacs-hwtac] key accounting simple expert

# Configure the scheme to remove the domain name from a username before sending the username to the HWTACACS server.

[Switch-hwtacacs-hwtac] user-name-format without-domain
[Switch-hwtacacs-hwtac] quit 

# Configure the AAA methods for the domain.

[Switch] domain bbb
[Switch-isp-bbb] authentication login hwtacacs-scheme hwtac
[Switch-isp-bbb] authorization login hwtacacs-scheme hwtac
[Switch-isp-bbb] accounting login hwtacacs-scheme hwtac
[Switch-isp-bbb] quit

Telnet to the switch as a user and enter the correct username and password. You pass authentication and log in to the switch. Issuing the display connection command on the switch, you can see information about the user connection.