Chapter 9 Configuring Switch-Based Authentication

Controlling Switch Access with RADIUS

 

Command

Purpose

Step 8

 

 

copy running-config startup-config

(Optional) Save your entries in the configuration file.

Step 9

 

 

 

Enable RADIUS login authentication. See the “Configuring RADIUS

 

 

Login Authentication” section on page 9-23.

 

 

 

To remove the specified RADIUS server, use the no radius-server host hostname ip-addressglobal configuration command. To remove a server group from the configuration list, use the no aaa group server radius group-nameglobal configuration command. To remove the IP address of a RADIUS server, use the no server ip-addressserver group configuration command.

In this example, the switch is configured to recognize two different RADIUS group servers (group1 and group2). Group1 has two different host entries on the same RADIUS server configured for the same services. The second host entry acts as a fail-over backup to the first entry.

Switch(config)# radius-server host 172.20.0.1 auth-port 1000 acct-port 1001

Switch(config)# radius-server host 172.10.0.1 auth-port 1645 acct-port 1646

Switch(config)# aaa new-model

Switch(config)# aaa group server radius group1

Switch(config-sg-radius)#server 172.20.0.1 auth-port 1000 acct-port 1001

Switch(config-sg-radius)# exit

Switch(config)# aaa group server radius group2

Switch(config-sg-radius)#server 172.20.0.1 auth-port 2000 acct-port 2001

Switch(config-sg-radius)# exit

Configuring RADIUS Authorization for User Privileged Access and Network Services

AAAauthorization limits the services available to a user. When AAA authorization is enabled, the switch uses information retrieved from the user’s profile, which is in the local user database or on the security server, to configure the user’s session. The user is granted access to a requested service only if the information in the user profile allows it.

You can use the aaa authorization global configuration command with the radius keyword to set parameters that restrict a user’s network access to privileged EXEC mode.

The aaa authorization exec radius local command sets these authorization parameters:

Use RADIUS for privileged EXEC access authorization if authentication was performed by using

RADIUS.

Use the local database if authentication was not performed by using RADIUS.

Note Authorization is bypassed for authenticated users who log in through the CLI even if authorization has been configured.

Beginning in privileged EXEC mode, follow these steps to specify RADIUS authorization for privileged EXEC access and network services:

 

Command

Purpose

Step 1

 

 

configure terminal

Enter global configuration mode.

Step 2

 

 

aaa authorization network radius

Configure the switch for user RADIUS authorization for all

 

 

network-related service requests.

 

 

 

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

 

OL-9775-02

9-27

 

 

 

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Cisco Systems 3750E manual Radius, Aaa authorization network radius