When dealing cisco routers It is important to understand the different prompts you can find when configuring a router so you know where you are at any time within configuration mode.
In this blog post, we will be demonstrating several prompts used in Cisco routers.
It is important to always check your prompts before making any changes to an already configured router.
Here in this post I intended to show all the different commands offered and also describe the different prompts you will see as you go further in networking technology
The first command we will look at is the Interface command
To make changes to any router interface, it is important you use the interface command from global configuration mode:
Here are the interface commands:
Async Async interface
BVI Bridge-Group Virtual Interface
Dialer Dialer interface
Lex Lex interface
Loopback Loopback interface
Multilink Multilink-group interface
Null Null interface
Port-channel Ethernet Channel of interfaces
Tunnel Tunnel interface
Virtual-Template Virtual Template interface
Virtual-TokenRing Virtual TokenRing
Router(config)#interface fastethernet 0/0
Notice the prompt changed to Router(config-if)# to tell you that you are
in interface configuration. It would be nice if it gave you an indication of what
interface you were configuring, but it doesn’t. This is probably one of the reasons
Cisco administrators make more money than Windows administrators.
Subinterfaces allow you to create virtual interfaces within the router.
The Prompt then changes to Router(config-subif)#.
FastEthernet interface number
To configure user mode passwords, use the line command.
then becomes Router (config-line)#.
Enter configuration commands, one per line. End with
First Line number
aux Auxiliary line
console Primary terminal line Vty
vty Virtual terminal
Router(config)#line console 0
The line console 0 command is known as a major, or global, command, and any command typed from the (config-line) prompt is known as a subcommand.