3-13 Logging In Through TelnetGo to these sections for information you are interested in:z Introductionz Telnet Configuration with Authentication Mode Being Nonez Telnet Configuration with Authentication Mode Being PasswordIntroductionSwitch 4210 supports Telnet. You can manage and maintain a switch remotely by Telnetting to theswitch.To log in to a switch through Telnet, the corresponding configuration is required on both the switch andthe Telnet terminal.You can also log in to a switch through SSH. SSH is a secure shell added to Telnet. Refer to the SSHOperation for related information.Table 3-1 Requirements for Telnetting to a switchItem RequirementThe IP address is configured for the VLAN of the switch, and the route betweenthe switch and the Telnet terminal is reachable. (Refer to the IP AddressConfiguration – IP Performance Configuration and Routing Protocol parts formore.)SwitchThe authentication mode and other settings are configured. Refer to Table 3-2and Table 3-3.Telnet is running.Telnet terminalThe IP address of the VLAN interface of the switch is available.Telnetting to a switch using IPv6 protocols is similar to Telnetting to a switch using IPv4 protocols. Referto the IPv6 Management part for related information.Common Configuration to Control Telnet AccessTable 3-2 Common Telnet configurationConfiguration DescriptionVTY userinterfaceconfigurationConfigure the commandlevel available to userslogging in to the VTY userinterfaceOptionalBy default, commands of level 0 are available tousers logging in to a VTY user interface.
