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- TACACS+ and RADIUS cannot be used at the same time. If both TACACS+ and RADIUS are enabled, then TACACS+ is valid but RADIUS is invalid.
- LDAP and TACACS+/RADIUS are mutually exclusive; they cannot be configured and used simultaneously.
- Users authenticate with the AAA server to gain access to the NAS server when AAA function is enabled. Make sure that the communication between the NAS server and AAA server works well.
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