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CLI login
Overview
The CLI enables you to interact with a device by typing text commands. At the CLI, you can instruct your
device to perform a given task by typing a text command and then pressing Enter to submit it to your
device. Compared with a GUI, where you can use a mouse to perform configuration, the CLI allows you
to input more information in one command line.
You can log in to the device at the CLI through the console port, Telnet, SSH, or modem.
• By default, you can log in to a device through the console port without any authentication, which
introduces security problems.
• By default, you cannot log in to a device through Telnet, SSH, so you cannot remotely manage and
maintain the device.
Therefore, you need to perform configurations to increase device security and manageability.
Logging in through the console port
Introduction
Logging in through the console port is the most common login method, and is also the first step to
configure other login methods.
After logging in to the device through the console port, you can configure other login methods. By default,
you can log in to a device only through its console port.
This section includes:
• Configuration requirements
• Login procedure
• Console login authentication modes
• Configuring none authentication for console login
• Configuring password authentication for console login
• Configuring scheme authentication for console login
• Configuring common settings for console login (optional)
Configuration requirements
The following table shows the configuration requirements for console port login.
Object Requirements
Device No configuration requirement
Run the hyper terminal program.
Terminal
Configure the hyper terminal attributes.
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