How to set Banner on Cisco Cli ?

You can follow the below commands  for the set banner :

oslo-router(config)#banner motd #my router!

Enter TEXT message. End with the character ‘#’.

This is my router. please log out#

oslo-router(config)#exit

oslo-router#

%SYS-5-CONFIG_I: Configured from console by console

e

% Ambiguous command: “e”

oslo-router#exit

oslo-router con0 is now available

Press RETURN to get started.

my router!

This is my router. please log out