Cisco Systems OL-6415-04 manual Configuring Radius Login Authentication

Chapter 7 Configuring RADIUS Servers

Configuring and Enabling RADIUS

	Command	Purpose
Step 6
	end	Return to privileged EXEC mode.
Step 7
	show running-config	Verify your entries.
Step 8
	copy running-config startup-config	(Optional) Save your entries in the configuration file.

To remove the specified RADIUS server, use the no radius-server host hostname ip-addressglobal configuration command.

This example shows how to configure one RADIUS server to be used for authentication and another to be used for accounting:

router(config)# radius-server host 172.29.36.49 auth-port 1612 key rad1 router(config)# radius-server host 172.20.36.50 acct-port 1618 key rad2

This example shows how to configure an SSID for RADIUS accounting:

router(config)# dot11 ssid batman

router(config-ssid)#accounting accounting-method-list

This example shows how to configure host1 as the RADIUS server and to use the default ports for both authentication and accounting:

router(config)# radius-server host host1

Note You also need to configure some settings on the RADIUS server. These settings include the IP address of the access point and the key string to be shared by both the server and the access point. 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. 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	Purpose
Step 1
	configure terminal	Enter global configuration mode.
Step 2
	aaa new-model	Enable AAA.
		Cisco Wireless ISR and HWIC Access Point Configuration Guide
OL-6415-04			7-7