Three authentication modes are available for login:
Ø None: Requires no username and password at the next login through Telnet. This mode is insecure.
Ø Password: Requires password authentication at the next login through Telnet. Keep your password. If you lose your password, log in to the router through the console port to view or modify the password.
Ø Scheme: Requires username and password authentication at the next login through Telnet. Authentication falls into local authentication and remote authentication.
§ To use local authentication, configure a local user and related parameters.
§ To use remote authentication, configure the username and password on the remote authentication server.
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