router - pt 1
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User and Privileged EXEC mode.

1

Enter ? command to show the commands in the User Exec mode

 

Outline some of the commands that are listed?

2

Enter Priv. Exec mode with the enable command.

3

Enter ? command to show the commands in the Priv. Exec mode

 

Outline some of the commands that are listed?

SETTING THE HOST NAME

Next go into the privileged executive mode:

1

Go into the privileged mode by typing enable.

 

How does the prompt change?

2

Use the ? command to view the commands in this mode.

 

What commands are available in Privileged Exec mode?

3

Configure the device using by typing config t.

 

How does the prompt change?

4

Set the hostname by typing hostname myhost.

5

Go back to the user executive mode with the command exit.

6

Show the main system configuration with show running-config.

 

What are the parameters displayed?

USING SHOW

1

Go into Priv. Exec. mode.

2

Use the show buffers command.

3

Use the show memory command.

4

Use the show stacks command.

5

Use the show hosts command.

6

Use the show arp command.

7

Use the show flash command.

8

Use the show version command.

9

Use the show protocols command.

10

Use the show interface e0 command.

11

Use the show interface s0 command.

12

Use the show interface s1 command.

USING CDP (Cisco Discovery Protocol). The CDP allows the discovery of the other devices which connect to the local device.

1

Enter show cdp neighbors command.

 

Which devices are connected to yours?

2

Enter show cdp neighbors details command.

SAVING THE CONFIGURATION. The changes that are made are made only to the running configuration (running-configuration). Once the user has verified that the new changes are okay, they should copy the running configuration into the startup configuration (startup-configuration). Once this is done, the router will startup with the updated changes. To do this the copy running-config startup-config command is used.

1

Go to the configuration model (that is, with the (config) # prompt).

2

Use the copy running-config startup-config command.

Other methods include:

copy running-config tfp which copies the running config to the TFTP server.
copy tftp running-config which copies from the TFTP server to the current running config.

SHOWING YOUR COMMANDS. The router stores all the previous commands, which can be recalled with the show history command.

1

Use the show history to display the previous commands.

SCROLLING THROUGH PREVIOUS COMMANDS. The UP and DOWN arrow keys can be used to scroll through the previous command, of which the user can select any of them, as required.

1

Use the UP and DOWN arrows to scroll through the command.

SETTING LINE CONSOLE PASSWORD. Passwords are important in providing a degree of security to the router. There are three main passwords to set: the executive password, the console password, and the remote login (vty) password. The vty password defines the telnet password, and the console password defines the initial login password. The console password is set by using the line con 0 command from the Privileged Exec mode, and then using the password command.

1

Go to the privileged interface mode (that is, with the (config) # prompt). Next configure the third Ethernet port with the line con 0 (which is the short form of line console 0)

2

Use the password fred command to set the password to fred.

3

Go back to the privileged mode (#) and run show running-config, and check that the parameters have been set.

ADDING PASSWORDS. There are two main passwords. The first is for the EXEC level, and the second is for the Privileged EXEC level.

1

Go privileged EXEC level (config)#, and enter enable password level 1 fred, to change the EXEC password to fred.

2

Go privileged EXEC level (config)#, and enter enable password level 15 bert, to change the privileged EXEC password to bert.

3

Show running-config, and prove that the passwords have been set.

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