Using the Cisco IOS Default Interface Command

Published by Keyboard Banger on


There is a useful command that every network administrator needs to know, which is default interface. This command resets the interface to its default settings, in case you face a networking issue or you don’t understand what’s going on after you made an interface configuration change.

To run the command:

  • Place yourself at the global configuration level,
  • issue the following command: defaut interface {interfaceID}.

Here is an example of running the default interface command on a Catalyst 6500 switch.


Beware that, in the case of a Catalyst 6500 switch, setting an interface back to its default configuration makes it a L3 interface (see the no switchport under the interface).

Categories: Networking Basics

Keyboard Banger

Keyboard Banger is a network engineer from Africa. He has been working in network support and administration since 2008. He started writing study notes about certification exams and technology topics a couple of years ago. When he's not writing articles, he can be found wandering on technical forums.


Leave a Reply

Your email address will not be published. Required fields are marked *