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CLI login
The CLI enables you to interact with a device by typing text commands. At the CLI, 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 the graphical user interface (GUI), where you can use a mouse to perform configuration, the
CLI allows you to enter more information in one command line.
Log in to the device at the CLI through the console port, Telnet, SSH, or modem.
• By default, 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 must perform configurations to increase device security and manageability.
Logging in through the console port
Logging in through the console port is the most common login method, and is also the first step to configure
other login methods.
By default, log in to a device through its console port only. After logging in to the device through the console
port, configure other login methods.
Configuration requirements
Ob
ect Re
uirements
Device No configuration requirement
Terminal
Run the hyper terminal program.
Configure the hyper terminal attributes.
The port properties of the hyper terminal must be the same as the default settings of the console port shown
in the following table.
Settin
Default
Bits per second 9,600 bps
Flow control None
Parity None
Stop bits 1
Data bits 8
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