70
level-0 through level-3 or changing the user role to network-admin. If the AAA configuration is
invalid or the HWTACACS server does not respond, the switch performs local authentication.
Figure 23 Network diagram
Configuration procedure
1. Configure the switch:
# Assign an IP address to VLAN-interface 2 (the interface connected to the Telnet user).
<Switch> system-view
[Switch] interface vlan-interface 2
[Switch-Vlan-interface2] ip address 192.168.1.70 255.255.255.0
[Switch-Vlan-interface2] quit
# Assign an IP address to VLAN-interface 3 (the interface connected to the HWTACACS
server).
[Switch] interface vlan-interface 3
[Switch-Vlan-interface3] ip address 10.1.1.2 255.255.255.0
[Switch-Vlan-interface3] quit
# Enable Telnet server.
[Switch] telnet server enable
# Enable scheme authentication on the user lines for Telnet users.
[Switch] line vty 0 63
[Switch-line-vty0-63] authentication-mode scheme
[Switch-line-vty0-63] quit
# Enable remote-then-local authentication for temporary user role authorization.
[Switch] super authentication-mode scheme local
# Create the HWTACACS scheme hwtac and enter HWTACACS scheme view.
[Switch] hwtacacs scheme hwtac
# Specify the primary authentication server address 10.1.1.1 and the service port 49 in the
scheme.
[Switch-hwtacacs-hwtac] primary authentication 10.1.1.1 49
# Set the shared key to expert in the scheme for the switch to authenticate to the server.
[Switch-hwtacacs-hwtac] key authentication simple expert
# Exclude the ISP domain name from the username sent to the HWTACACS server.
[Switch-hwtacacs-hwtac] user-name-format without-domain
[Switch-hwtacacs-hwtac] quit
# Create ISP domain bbb and enter ISP domain view.
[Switch] domain bbb
# Configure ISP domain bbb to use local authentication for login users.
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