header { login | shell }
login – header text is displayed after you are trying to log into a device
shell – header text is displayed after you are successfully logged into a device
Example of configuring header login by using plain text:
[labnario]header login information % The banner text supports 220 characters max, including the start and the end character.If you want to enter more than this, use banner file instead.Input banner text, and quit with the character '%': welcome to labnario network lab!!!%
Remember that the initial and end characters must be the same. In this case % has been used. The interaction starts after you put % and then enter and automatically closes when you write your header text and put % again.