Information Technology Reference
In-Depth Information
To clear the configuration, issue the
erase startup-config
command. Press
Enter
when
prompted to
[confirm]
that you really do want to erase the configuration currently stored
in NVRAM. The result should look something like this:
Router#
erase startup-config
Erasing the nvram filesystem will remove all files! Continue? [confirm]
[OK]
Erase of nvram: complete
Router#
Reload the configuration.
Step 3.
When the prompt returns, issue the
reload
command. Answer
no
if asked to save changes.
After the router finishes the boot process, choose not to use the AutoInstall facility, as
shown:
Would you like to enter the initial configuration dialog? [yes/no]:
no
Would you like to terminate autoinstall? [yes]:
Press Enter to accept default.
Press RETURN to get started!
Establish a HyperTerminal session to R2.
Step 4.
Repeat Steps 1 through 3 to remove any startup configuration files that might be present.
Task 5: Understand Command-Line Basics
Establish a HyperTerminal session to router R1.
Step 1.
Enter privileged EXEC mode.
Step 2.
Router>
enable
Router#
Enter an incorrect command and observe the router response.
Step 3.
Router#
comfigure terminal
^
% Invalid input detected at '^' marker.
Router#
Command-line errors occur primarily from typing mistakes. If a command keyword is
incorrectly typed, the user interface uses the caret symbol (^) to identify and isolate the
error. The ^ appears at or near the point in the command string where an incorrect com-
mand, keyword, or argument was entered.
Correct the previous command.
Step 4.
If a command is entered incorrectly, and the
Enter
key is pressed, the
Up Arrow
key can
be pressed to repeat the last command. Use the
Right Arrow
and
Left Arrow
keys to
move the cursor to the location where the mistake was made. Then make the correction. If
something needs to be deleted, use the
Backspace
key. Use the directional keys and the
Backspace
key to correct the command to
configure terminal
, and then press
Enter
:
