Cisco routers Command-Line Interface Configuration
When configuring a cisco router, the Command-Line Interface (CLI) is really the best way to configure a router, the reason for this is because the cisco CLI gives you the most flexibility and control over a router.
To use the CLI, just say ‘no’ to enter the Initial Configuration Dialog. After you say no, the router will
come back with messages stating the status of all the router interfaces.
Router: Would you like to enter the initial configuration dialog?
Say : [yes]: n
Would you like to terminate auto install? [yes]:return
Press RETURN to get started! And then you get all interface status as listed below
LINK-3-UPDOWN: Interface Ethernet0, changed state to up
LINK-3-UPDOWN: Interface Serial0, changed state to down
LINK-3-UPDOWN: Interface Serial1, changed state to down
LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0, changed state to up
LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed state to down
LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1, changed state to down
LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0, changed state to down
LINK-5-CHANGED: Interface Serial0, changed state to administratively down
LINK-5-CHANGED: Interface Ethernet0, changed state to administratively down
LINK-5-CHANGED: Interface Serial1, changed state to administratively down
This is the current status of your router as the configuration are coming in the interface status will change from down to up depending on the input command.