Authentication-mode Common configuration parameters are three kinds

Authentication-mode Common configuration parameters are three kinds
User-interface vty 0 14

1. Authentication-mode AAA or Authentication-mode scheme
Create a local user and enable AAA authentication.

2, Authentication-mode password
Set the password with Passrod directly under User-interface vty

3, Authentication-mode None
Remote Maintenance login No password required

Scheme is the meaning of combination. Is the combination of authentication method, that is, enter: User name + password authentication.
1. Enter the user interface: User-interface 0 4 (as in Cisco Vty, 0 4 means that 5 user sessions can be connected simultaneously, 0,1,2,3,4)
2. Set the authentication mode to combination mode (username plus password): Authenticate-mode scheme
3. Create a local user name: Local-user user name,
4. Set User password: password simple password ...
5. Set the Access service type to Telnet:service-type telnet
6. Set authorized access levels: Level 3
7. Exit: Quit

Authentication-mode Common configuration parameters are three kinds