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Cisco Catalyst Blade Switch 3130 for Dell Software Configuration Guide
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Chapter7 Configuring Switch-Ba sed Authentication Controlling Switch Access with Kerberos
As mentioned earlier, to configure RADIUS (whether vendor-proprietary or IETF draft-comp liant), you
must specify the host running the RADIUS server daemon and the secret text string it shares with the
switch. You specify the RADIUS host and secret text string by using the radius-server global
configuration commands.
Beginning in privileged EXEC mode, follow these steps to specify a vendor-proprietary RADIUS ser ver
host and a shared secret text string:
To delete the vendor-proprietary RADIUS host, use the no radius-server host {hostname | ip-address}
non-standard global configuration command. To disable the key, use the no radius-server key global
configuration command.
This example shows how to specify a vendor-proprietary RADIUS host and to use a secret key of rad124
between the switch and the server:
Switch(config)# radius-server host 172.20.30.15 nonstandard
Switch(config)# radius-server key rad124

Displaying the RADIUS Configuration

To display the RADIUS configuration, use the show running-config privileged EXEC command.
Controlling Switch Access with Kerberos
This section describes how to enable and configure the Kerberos security system, which authenticates
requests for network resources by using a trusted third party. To use this feature, the cryptographic (that
is, supports encryption) versions of the switch software must be installed on your switch.
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 radius-server host {hostname | ip-address} non-standard Specify the IP address or hostname of the remote
RADIUS server host and identify that it is using a
vendor-proprietary implementation of RADIUS.
Step3 radius-server key string Specify the shared secret text string used between the
switch and the vendor-proprietary RADIUS server.
The switch and the RADIUS server use this text
string to encrypt passwords and exchange responses.
Note The key is a text string that must match the
encryption key used on the RADIUS server.
Leading spaces are ignored, but spaces within
and at the end of the key are used. If you use
spaces in your key, do not enclose the key in
quotation marks unless the quotation marks
are part of the key.
Step4 end Return to privileged EXEC mode.
Step5 show running-config Verify your settings.
Step6 copy running-config startup-config (Optional) Save your entries in the configuration file.