Cisco Router Configuration Command Line Interface (CLI) Modes

You may be taught the completely different Router CLI configuration modes and their specs right here. This text will aid you to passing your Cisco certification exams. Usually the decrease finish Cisco Routers makes use of completely different instructions than the mid to higher vary routers. The instructions we’re utilizing on completely different Cisco Routers are nearly the identical, however there are all the time a couple of variations to those instructions relying on the interfaces your Cisco Router has, IOS model, and the kind of WAN protocols they help.Person Exec Mode:That is the primary mode you may see on a Cisco Router is consumer exec mode. That is additionally the default mode if you find yourself related the Router utilizing Telnet. You may’t write or add to a configuration on this mode, however you possibly can run fairly a couple of present instructions. It is a good mode to have customers in who have to see the configuration, however should not be allowed to vary it.The consumer exec mode immediate will appear like this:Cisco-Router>Privilege or Allow Mode:This mode has two names, the official one being privileged exec mode. It is extra generally known as allow mode, since “enable” is what you sort to get into this mode. Now you bought full entry privileges of Cisco gadget however this mode provides you extra choices for present and different instructions, however you continue to cannot configure something.Router>enableRouter#Cisco Router Setup Mode:Cisco Router will go to the setup mode whether it is model new or with default situation. After finishing the booting course of, Cisco Router will immediate in setup mode for preliminary configuration dialogue if there isn’t a configuration within the reminiscence. Already configured Cisco Router won’t immediate setup mode immediately. You may also enter into the Router setup mode any time by utilizing setup command.

The Cisco Router setup mode instructions are as follows:Router # setupSystem Configuration Dialog Proceed with configuration dialog? [Yes/no]: YAt any level it’s possible you’ll enter a query mark “?” for helpUse ctrl-c to abort the configuration dialog at any promptDefault settings are in sq. brackets “[ ]”Fundamental administration setup configures solely sufficient connectivity for administration of the Router, prolonged setup will ask you to configure every interface on the Router.Would you wish to enter fundamental administration setup? [Yes/no] nGlobal Configuration Mode:To configure the Cisco Router, you need to must enter the worldwide mode. To enter into this mode, problem the configure terminal or config t command from the privileged EXEC mode. All of the configurations are accomplished on this mode, and you too can problem a present command like in privilege exec mode by utilizing Do command.This mode we will name as International mode or International configuration modeRouter#conf tEnter configuration instructions, one per line. Finish with CNTL/Z.Router(config)#Interface Mode:To configure any interface, you need to enter the interface’s configuration mode. To enter into this mode, problem the interface command from the worldwide configuration mode. You may return to the privileged EXEC mode by urgent CTRL+Z or problem an END command. To exit from this mode, problem the EXIT command, and you will be moved to the worldwide configuration mode. You may also use present instructions with DO command right here.Router(config)#interface serial0Router(config-if)#Sub Interface Configuration Mode:To configure any logical interfaces on Cisco Router, you need to enter the sub interface’s configuration mode. To enter into this, problem the interface command from the worldwide configuration mode with sub or logical interface quantity.Router(config)#interface FastEthernet zero/zero.1Router(config-subif)#Router Configuration Mode:To configure a Router protocol, you need to enter a selected Routing protocol command in international configuration mode. If need to execute a privileged EXEC instructions such because the present command, you possibly can execute utilizing DO command. You may return to the privileged EXEC mode by urgent CTRL+Z or with END command. To exit from this mode, problem the exit command, and you will be moved to the worldwide configuration mode.Router(config)#router rip

Router(config-router)#exitRouter(config)#Line Configuration Mode:To configure authentication to entry the router utilizing the console port or remotely, you need to enter the configuration mode of the particular line(s). To enter into this, problem the road command from the worldwide configuration mode or different configuration mode. In case you want to execute a privileged EXEC command such because the present command, you possibly can precede it by the DO command. You may return to the privileged EXEC mode by urgent CTRL+Z or with END command. To exit from this mode, problem the exit command, and you will be moved to the worldwide configuration mode.The immediate config-line signifies that you just’re in line configuration mode.Router#conf tEnter configuration instructions, one per line. Finish with CNTL/Z.Router(config)#line console 0Router(config-line)#password ciscoRouter(config-line)#loginRouter(config-line)#line vty zero 4Router(config-line)#password ciscoRouter(config-line)#loginNotice that you just should not have to exit one interface mode to go to a different one. To illustrate that you’ve got configured your VTY traces and now need to put an IP deal with in your Ethernet interface. You do not have to exit with ctrl-z after which begin once more – you possibly can go straight to interface config mode from line config mode. Simply be sure you see the immediate change.