Ccna routing and Switching Complete Study Guide

interface fastEthernet 0/1

Switch(config-if)#)

Did you notice that the prompt changed to 

Switch(config-if)#

? This tells you that 

you’re in interface configuration mode. And wouldn’t it be nice if the prompt also gave you 

an indication of what interface you were configuring? Well, at least for now we’ll have to 

live without the prompt information, because it doesn’t. But it should already be clear to 

you that you really need to pay attention when configuring an IOS device!

Line Commands

To configure user-mode passwords, use the 

line

 command. The prompt then becomes 

Switch(config-line)#

:

Switch(config)#

line ?

  <0-16>   First Line number

  console  Primary terminal line

  vty      Virtual terminal

Switch(config)#

line console 0

Switch(config-line)#

The 

line console 0

 command is a global command, and sometimes you’ll also hear 

people refer to global commands as major commands. In this example, any command 

typed from the 

(config-line)

 prompt is known as a subcommand.