3-5[Sysname] user-interface vty 0# Configure not to authenticate Telnet users logging in to VTY 0.[Sysname-ui-vty0] authentication-mode none# Specify commands of level 2 are available to users logging in to VTY 0.[Sysname-ui-vty0] user privilege level 2# Configure Telnet protocol is supported.[Sysname-ui-vty0] protocol inbound telnet# Set the maximum number of lines the screen can contain to 30.[Sysname-ui-vty0] screen-length 30# Set the maximum number of commands the history command buffer can store to 20.[Sysname-ui-vty0] history-command max-size 20# Set the timeout time to 6 minutes.[Sysname-ui-vty0] idle-timeout 6Telnet Configuration with Authentication Mode Being PasswordConfiguration ProcedureFollow these steps to configure Telnet with the authentication mode being password:To do… Use the command… RemarksEnter system view system-view —Enter one or more VTY userinterface viewsuser-interface vty first-number[ last-number ] —Configure to authenticateusers logging in to VTY userinterfaces using the localpasswordauthentication-modepassword RequiredSet the local password set authentication password{ cipher | simple } password RequiredConfigure the command levelavailable to users logging into the user interfaceuser privilege level levelOptionalBy default, commands of level 0 areavailable to users logging in to VTY userinterface.Configure the protocol to besupported by the userinterfaceprotocol inbound { all | ssh |telnet }OptionalBy default, both Telnet protocol and SSHprotocol are supported.Set the commands to beexecuted automatically after auser login to the userinterface successfullyauto-execute command textOptionalBy default, no command is executedautomatically after a user logs into theuser interface.Make terminal servicesavailable shellOptionalBy default, terminal services are availablein all user interfaces.Set the maximum number oflines the screen can contain screen-length screen-lengthOptionalBy default, the screen can contain up to24 lines.You can use the screen-length 0command to disable the function todisplay information in pages.
