Modes Of Router:-
Setup Mode:- (Create the initial configuration.)Basic Mode:- It gives Enough Configuration.
Extended Mode:- It give the configuration of some global parameters as well as interface.
To Enter Setup Mode just type Yes or y in configuration dialog.
User EXEC Mode:-
In this mode you only get some basic monitoring command of router.
Change terminal setting, limited show command, ping, trace, telnet etc.
you can get a list of available commands by just entering a question mark (?) in any command mode.
Type "?"
Privileged EXEC Mode:-
In this mode you Monitoring as well as some troubleshooting command of router.
All Show commands, copy, delete, debug etc.
Global Configuration Mode:-
In this mode You Configure router according to requirement like host name, routing configuration etc.
You can modify as well as delete the configuration which affect the router globally.
Line Configuration:-
In
this mode you set password to console, auxiliary ports and virtual terminal
(VTY) for securing your router from other person (hacker).
Interface Configuration:-
In
this mode you Configure router interface means you set IP address to ports
either it is fastethernet, serial etc. 
Sub-interface Configuration:-
In
this mode you create a virtual interface by dividing one physical interface
into multiple logical interfaces.
Rommon Mode:-
When
you did not remember your router password or any Boot failure with router at
that time you use this mode.
Router Modes
| 
Command
  Mode | 
Access
  Method | 
Prompt | 
Exit
  Mode | 
| 
User EXEC Mode | 
Start session (By Default) | 
Router> | 
Type logout or exit command | 
| 
Privilege EXEC Mode | 
Use enable command  | 
Router# | 
Type disable command | 
| 
Global Configuration Mode | 
Use configure or configure
  terminal  | 
Router(config)# | 
Type exit command or press
  "ctrl+z" | 
| 
Interface Configuration | 
Interface command | 
Router(config-if)# | 
Type exit, end command or press
  "ctrl+z"  | 
| 
Sub-interface Configuration | 
Sub-interface with interface
  command | 
Router(config-subif)# | 
Type exit command | 
| 
Rommon Mode | 
Use reload command (press
  ctrl+pause break or ctrl+c at the time of booting process) | 
rommon 1> | 
Some router support reset,
  reboot and reload command for exit from rommon mode. | 
| 
Line Configuration | 
Use line command | 
Router(config-line)# | 
Type exit command | 







