Information Technology Reference
In-Depth Information
What type of cable is used to connect the Ethernet interface on a switch to the Ethernet interface on a
router?
Straight-through (patch) cable
What type of cable is used to connect the Ethernet interface on a router to the Ethernet interface on a
host PC?
Crossover cable
Task 2: Erase and Reload the Routers
Establish a terminal session to router R1.
Step 1.
Refer to Lab 1-1 for a review of terminal emulation and connecting to a router.
Enter privileged EXEC mode:
Step 2.
Router>
enable
Router#
Clear the configuration.
Step 3.
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:
Router#
erase startup-config
Erasing the nvram filesystem will remove all files! Continue? [confirm]
[OK]
Erase of nvram: complete
Router#
Reload the configuration.
Step 4.
When the prompt returns, issue the
reload
command. Answer
no
if asked to save changes.
What would happen if you answered
yes
to the question, “System configuration has been
modified. Save?”
The current running configuration would be saved to NVRAM, negating the entire purpose
of erasing the startup configuration. The router would boot up with a configuration.
The result should look something like this:
Router#
reload
System configuration has been modified. Save? [yes/no]:
no
Proceed with reload? [confirm]
Press
Enter
when prompted to
[confirm]
that you really do want to reload the router.
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 Return]
Press Enter to accept default.
Press RETURN to get started!
