The Login Cisco command

Command: login

Purpose: To establish a terminal session on a network device.

Syntax:

login

Usage:

The login command is used to establish a terminal session on a network device such as a router, switch or firewall. The command is entered in the Command Line Interface (CLI) of the network device. When the login command is entered, the user will be prompted for a username and password. Once the username and password are entered, the user will be logged into the network device and will have access to the CLI.

Effect of the Command:

The login command will establish a terminal session on the network device and allow the user to access the CLI. The user will be able to configure the network device, view the configuration of the network device, and troubleshoot any problems with the network device.

Restrictions:

The login command can only be used on network devices that support the CLI. Additionally, the user must have a valid username and password in order to log into the network device.

Cisco Equipment Models Commonly Used With:

All Cisco network devices that support the CLI.

Examples:

The following is an example of how the login command can be used:

 Router# login
 Username: admin
 Password: password

In this example, the login command is used to establish a terminal session on a Cisco router. The user is prompted for a username and password and once they are entered, the user is logged into the router and has access to the CLI.

The Cisco command 'login' allows a user to log in to a Cisco device. It is typically used in conjunction with the 'username' and 'password' commands to specify the username and password of the user who is logging in.

Here are some examples of how the 'login' command can be used:

To log in to a Cisco device using the username 'admin' and the password 'password':

login admin password

To log in to a Cisco device using the username 'admin' and the password 'password', and to specify a specific privilege level:

login admin password 15

To log in to a Cisco device using the username 'admin' and the password 'password', and to specify a specific virtual terminal number:

login admin password vty 5

To log in to a Cisco device using the username 'admin' and the password 'password', and to specify a specific console port:

login admin password console 0

To log in to a Cisco device using the username 'admin' and the password 'password', and to specify a specific SSH port:

login admin password ssh 22

The 'login' command can also be used to log in to a Cisco device using a key file. To do this, the 'key' keyword must be used, followed by the path to the key file. For example:

login admin key /home/admin/.ssh/id_rsa

The 'login' command is a powerful tool that can be used to access Cisco devices in a variety of ways. By understanding the different options that are available, you can use the 'login' command to securely and efficiently manage your Cisco devices.

The Login Cisco command

login Usage Examples