Cisco WS-C2980G-A Software Guide - Page 469
Specifying the RADIUS Key
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Chapter 30 Configuring Switch Access Using AAA Configuring Authentication Note To use RADIUS authentication for enable mode, you need to create a user with the name $enab15$ on the RADIUS server, and assign a password to that user. This user needs to be created in addition to your assigned username and password on the RADIUS server (example: username john, password hello.) After you log in to the Catalyst 4500 series switch with your assigned username and password (john/hello), you can enter enable mode using the password that is assigned to the $enab15$ user. If your RADIUS server does not support the $enab15$ username, you can set the service-type attribute (attribute 6) to Administrative (value 6) for a RADUIS user to directly launch the user into enable mode without asking for a separate enable password. This example shows how to enable RADIUS authentication and verify the configuration: Console> (enable) set authentication login radius enable radius login authentication set to enable for console and telnet session. Console> (enable) set authentication enable radius enable radius enable authentication set to enable for console and telnet session. Console> (enable) show authentication Login Authentication tacacs radius local Console Session disabled enabled(primary) enabled Telnet Session disabled enabled(primary) enabled Enable Authentication: Console Session Telnet Session tacacs disabled disabled radius enabled(primary) enabled(primary) local enabled enabled Console> (enable) Specifying the RADIUS Key The RADIUS key is used to encrypt and authenticate all communication between the RADIUS client and server. You must configure the same key on the client and the RADIUS server. The length of the key is limited to 65 characters. It can include any printable ASCII characters except tabs. To specify the RADIUS key, perform this task in privileged mode: Step 1 Step 2 Task Command Specify the RADIUS key that is used to encrypt packets sent set radius key key to the RADIUS server. Verify the RADIUS configuration. show radius This example shows how to specify the RADIUS key and verify the configuration (in normal mode, the RADIUS key value is hidden): Console> (enable) set radius key Secret_RADIUS_key Radius key set to Secret_RADIUS_key Console> (enable) show radius Login Authentication: Console Session Telnet Session 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 30-25
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