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Chapter 11
Configuring RADIUS and TACACS+ Servers
This example shows how to configure host1 as the RADIUS server and to use the default ports for both
authentication and accounting:
BR(config)# radius-server host host1
You also need to configure some settings on the RADIUS server. These settings include the IP address
Note
of the bridge and the key string to be shared by both the server and the bridge. For more information,
refer to the RADIUS server documentation.
Configuring RADIUS Login Authentication
To configure AAA authentication, you define a named list of authentication methods and then apply that
list to various interfaces. The method list defines the types of authentication to be performed and the
sequence in which they are performed; it must be applied to a specific interface before any of the defined
authentication methods are performed. The only exception is the default method list (which, by
coincidence, is named default). The default method list is automatically applied to all interfaces except
those that have a named method list explicitly defined.
A method list describes the sequence and authentication methods to be queried to authenticate a user (in
this case, a non-root bridge). You can designate one or more security protocols to be used for
authentication, thus ensuring a backup system for authentication in case the initial method fails. The
software uses the first method listed to authenticate users; if that method fails to respond, the software
selects the next authentication method in the method list. This process continues until there is successful
communication with a listed authentication method or until all defined methods are exhausted. If
authentication fails at any point in this cycle—meaning that the security server or local username
database responds by denying the user access—the authentication process stops, and no other
authentication methods are attempted.
Beginning in privileged EXEC mode, follow these steps to configure login authentication. This
procedure is required.
Command
Step 1
configure terminal
Step 2
aaa new-model
OL-4059-01
Purpose
Enter global configuration mode.
Enable AAA.
Cisco Aironet 1400 Series Wireless Bridges Software Configuration Guide
Configuring and Enabling RADIUS
11-7
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