Real device   # First time router Console port connect cable then connect Laptop. Software: Putty, Tera term Port: Serial # Second time router off and same time on and click keyboard Break key +Ctrl key # Then will get Rommon mode # Type   rommon 1 > confreg rommon 2 > confreg...

Cisco Router configuration  User EXEC mode, privilege mode and global configuration mode   →Router>              [ > User EXEC mode] → Router >enable → Router #             ...