HP 6120XG ProCurve Series 6120 Blade Switches Management and Configuration Gui - Page 533
Radius-Related Problems, radius-server timeout, show radius, C-3.
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Troubleshooting Unusual Network Activity Radius-Related Problems The switch does not receive a response to RADIUS authentication requests. In this case, the switch will attempt authentication using the secondary method configured for the type of access you are using (console, Telnet, or SSH). There can be several reasons for not receiving a response to an authentication request. Do the following: ■ Use ping to ensure that the switch has access to the configured RADIUS server. ■ Verify that the switch is using the correct encryption key for the desig nated server. ■ Verify that the switch has the correct IP address for the RADIUS server. ■ Ensure that the radius-server timeout period is long enough for network conditions. ■ Verify that the switch is using the same UDP port number as the server. RADIUS server fails to respond to a request for service, even though the server's IP address is correctly configured in the switch. Use show radius to verify that the encryption key the switch is using is correct for the server being contacted. If the switch has only a global key configured, then it either must match the server key or you must configure a server-specific key. If the switch already has a server-specific key assigned to the server's IP address, then it overrides the global key and must match the server key. Global RADIUS Encryption Key Unique RADIUS Encryption Key for the RADIUS server at 10.33.18.119 Figure C-3. Examples of Global and Unique Encryption Keys C-15
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