Basic routing knowledge: Describes basic router configuration statements.

It is very important to know about vro configurations. Here we will mainly introduce the basic statements about vro configuration. This part will start with the basic vro configuration and guide you to further study. This part is more suitable for beginners. If you have a CCIE certificate, you can skip it.

Basic router configuration:

If you have never touched Cisco routers or our structures, the education lab will be a good place for you to start learning. We will start from the most basic part and guide you step by step to configure most of our structures. Before learning, it is best to print out the table on the left edge and the layout diagram, which shows how the rack is connected and the relationship between the router part you activated, the layout diagram shows how we connect to various devices in the lab. We will learn how to create the content described in these network diagram tables.

Before learning, you can take a look at some basic information about Cisco, which describes the basic operations of CISCO routers and switches. The document also describes how to use a rack. This section includes some basic information, such as how to access a vro, A vswitch, and remotely restart the control port of a device. All the commands you typed are executed using the Enter key. After entering all the command words, if there are no special instructions, press enter to confirm. All commands are enclosed in double quotation marks. Cisco allows abbreviated command words to save input, a bit like UNIX. Some command words may have been reduced to several characters, but its implementation function requires a long string of characters to be clearly expressed. For example, the commonly used router configuration commands only need to be implemented by typing f, which means "frame-relay" frame relay ). If someone asks you to type "f switching", you must know what vro configuration is exchanged for this command. In our learning process, pay attention to the abbreviated command. Enter some characters and press the tab key to run the command on the vro. Step 1:

Log on to the Term_Srv server using any remote login software you like. Windows 95/98 is suitable for individual users. Run "remote login", get the login password, and connect to your URL. After login, you will see the Term_Srv command line. Type R1 to enter the R1 console. From the icon, we can see that R1 requires two interface router configurations. Here there are four serial ports of the rack and vro and the connection of the token network port. We only use the serial ports 1/2 and 1/1.

If a prompt is displayed on the initial installation interface of the vro, press Ctrl + C to exit. After you see the prompt "Router>", type the "enable" command to enter the privileged mode. Enter "config term" to enter the vro configuration mode, and enter "hostname [name]". name indicates the name of the vro you want to configure, such as R1 and R2. To prevent the vro from spelling the command, run the "no ip domain-lookup" command. If you want to set a password, enter privileged mode. Type "enable password cisco" to allow or set the cisco privileged password. Finally, we need to set the remote logon password. Use the command "line vty 0 4". Note that there is a space between 0 and 4 ), this will enter the thread configuration mode. We set the line to 0 to 4, so that the configuration here applies to all five login lines. Type "password cisco" to set the remote login password, type "exit" to return to configuration mode, and type "exit" again to return to allowed mode. Type "write mune" to save the configuration file. Check the configuration file to make sure that you have entered the correct command. Type "write menu" or "show run" to open the current vro configuration, the content should be similar to the following:

 
 

  
  
Current configuration:  
  
  
!  
  
  
version 11.2  
  
  
no service password-encryption  
  
  
no service udp-small-servers  
  
  
no service tcp-small-servers  
  
  
!  
  
  
hostname R1  
  
  
!  
  
  
enable password cisco  
  
  
!  
  
  
no ip domain-lookup  
  
  
!  
  
  
!  
  
  
interface Ethernet0  
  
  
no ip address  
  
  
shutdown  
  
  
!  
  
  
interface Serial0  
  
  
no ip address  
  
  
shutdown  
  
  
no fair-queue  
  
  
!  
  
  
interface Serial1  
  
  
no ip address  
  
  
shutdown  
  
  
!  
  
  
interface BRI0  
  
  
no ip address  
  
  
shutdown  
  
  
!  
  
  
no ip classless  
  
  
!  
  
  
!  
  
  
line con 0  
  
  
line aux 0  
  
  
line vty 0 4  
  
  
password cisco  
  
  
login  
  
  
!  
  
  
end