Disable Different Line Interface Passwords on Cisco Devices–Routers/ Switches

Disable line passwords on cisco devices(routers,switches)

This tutorial will benefit CCNA students and networking professional who want a quick go through of disabling passwords for different lines of Cisco devices(Switches/ Routers). This tutorial is specifically for removing line console password, line VTY/TELNET password and auxiliary line password, if you want to know about setting line VTY/TELNET password read this cisco tutorial. For setting auxiliary line password read this “How to set auxiliary line password“.

What Does Line console 0 means:

Line console is referred to the physical port of a switch/router which is used for connecting to a system i.e PC or laptop for configuration or monitoring the switch/router. Where as the “0” in line console 0 command means that we have one console port on our router/switch therefore we are connecting through that single port. If there are more than one console ports on a specific router/switch then we can specify those ports as console line 0 being the first port , console line 1 as the second port and console line 2 as a third port.

Removing Line Console Password:

Console line 0 is a configuration mode command which means you should be at configurations mode to set or disable line console password.

UPAAE >enable                                // go to enable mode

UPAAE # configure terminal            // go to global configuration mode

UPAAE (config)# line console 0                  // go to line console interface config mode

UPAAE (config-line)# no login                    // force no login

UPAAE (config-line)# no password          // disable password for line console interface

UPAAE (config-line)# end                       // go back to enable mode


Removing Line VTY/TELNET password:

If you want to read about setting VTY/TELNET password you can read it here “how to set line VTY/TELNET password“.

UPAAE > enable                 // go to enable mode OR leave this step if you are at enable mode

UPAAE # configure terminal        // configure terminal mode

UPAAE (config)# line vty 0 4        // going to line VTY interface configuration mode

UPAAE (config-line) #no login    // force no login

UPAAE (config-line) #no password          // disable password for line VTY interface

UPAAE (config-line) # end


Removing Auxiliary Line Password:

We have discussed setting auxiliary line password in another tutorial you can check it out here.

UPAAE # configure terminal                        // going to global configuration mode

UPAAE (config) # line aux 0                         // going to Auxiliary line configuration mode

UPAAE (config-line) # no login                   // forcing no login

UPAAE (config-line) # no password         // disabling password for Auxiliary line

UPAAE (config-line) # exit                            // Jumping back to global configuration mode

UPAAE (config) # exit                                     // Jumping back to enable mode
Recommended Resources for CCNA Exam:

Following resources are my personal recommendation for CCNA exam preparation, i know that i should recommend one best and most trusted resource but these are all my favorite, choosing only one among these great resources would be a biased decision according to my point of view. You can choose anyone from the following resources and i am 98% sure it will get you CCNA Routing and Switching certificate.

If you have any queries and questions related to removing auxiliary line password, vty line password or console line password, do ask in comments.
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