Troubleshooting

Unusual Network Activity

■The encryption key configured in the server does not match the encryption key configured in the switch (by using the tacacs-server key command). Verify the key in the server and compare it to the key configured in the switch. (Use show tacacs-serverto list the global key. Use show config or show config running to list any server-specific keys.)

■The accessible TACACS+ servers are not configured to provide service to the switch.

Access Is Denied Even Though the Username/Password Pair Is Correct. Some reasons for denial include the following parameters controlled by your TACACS+ server application:

■The account has expired.

■The access attempt is through a port that is not allowed for the account.

■The time quota for the account has been exhausted.

■The time credit for the account has expired.

■The access attempt is outside of the time frame allowed for the account.

■The allowed number of concurrent logins for the account has been exceeded

For more help, refer to the documentation provided with your TACACS+ server application.

Unknown Users Allowed to Login to the Switch. Your TACACS+ application may be configured to allow access to unknown users by assigning them the privileges included in a default user profile. Refer to the documentation provided with your TACACS+ server application.

System Allows Fewer Login Attempts than Specified in the Switch

Configuration. Your TACACS+ server application may be configured to

allow fewer login attempts than you have configured in the switch with the aaa authentication num-attemptscommand.

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