Topology
Objectives
Part 1: Set Up Devices in the Network
as Shown in the Topology
Part 2: Initialize the Router and
Reload
Part 3: Initialize the Switch and
Reload
Background / Scenario
Before starting a CCNA hands-on lab that
makes use of either a Cisco router or switch, ensure that the devices in use have
been erased and have no startup configurations present. Otherwise, the results
of your lab may be unpredictable. This lab provides a detail procedure for
initializing and reloading a Cisco router and a Cisco switch.
Note: The routers used with CCNA hands-on labs
are Cisco 1941 Integrated Services Routers (ISRs) with Cisco IOS Release 15.2(4)M3
(universalk9 image). The switches used are Cisco Catalyst 2960s with Cisco IOS Release
15.0(2) (lanbasek9 image). Other routers, switches, and Cisco IOS versions can
be used. Depending on the model and Cisco IOS version, the commands available
and output produced might vary from what is shown in the labs.
Required Resources
·
1 Router (Cisco 1941 with Cisco
IOS software, Release 15.2(4)M3 universal image or comparable)
·
1 Switch (Cisco 2960 with Cisco
IOS Release 15.0(2) lanbasek9 image or comparable)
·
2 PCs (Windows 7 or 8 with
terminal emulation program, such as Tera Term)
·
Console cables to configure the
Cisco IOS devices via the console ports
Part 1: Set Up Devices in the Network as Shown in the Topology
Step 1:
Cable the network as shown in
the topology.
Attach console cables to the devices
shown in the topology diagram.
Step 2:
Power on all the devices in the
topology.
Wait for all devices to finish the
software load process before moving to Part 2.
Part 2: Initialize the Router and Reload
Step 1:
Connect to the router.
Console into the router and enter
privileged EXEC mode using the enable command.
Router> enable
Router#
Step 2:
Erase the startup configuration
file from NVRAM.
Type the erase startup-config command to remove the startup configuration
from nonvolatile random-access memory (NVRAM).
Router# erase
startup-config
Erasing the nvram filesystem will remove
all configuration files! Continue? [confirm]
[OK]
Erase of nvram: complete
Router#
Step 3:
Reload the router.
Issue the reload command to remove an old configuration from memory. When
prompted to Proceed with reload, press Enter to confirm the reload. Pressing
any other key will abort the reload.
Router# reload
Proceed with reload? [confirm]
*Nov 29 18:28:09.923:
%SYS-5-RELOAD: Reload requested by console. Reload Reason: Reload Command.
Note: You may receive a prompt to save the running configuration prior
to reloading the router. Respond by typing no
and press Enter.
System configuration has been modified.
Save? [yes/no]: no
Step 4:
Bypass the initial
configuration dialog.
After the router reloads, you are
prompted to enter the initial configuration dialog. Enter no and press Enter.
Would you like to enter
the initial configuration dialog? [yes/no]: no
Step 5:
Terminate the autoinstall program.
You will be prompted to terminate the autoinstall
program. Respond yes and then press Enter.
Would you like to
terminate autoinstall? [yes]: yes
Router>
Part 3: Initialize the Switch and Reload
Step 1:
Connect to the switch.
Console into the switch and enter
privileged EXEC mode.
Switch> enable
Switch#
Step 2:
Determine if there have been
any virtual local-area networks (VLANs) created.
Use the show flash command to determine if any VLANs have been created on the
switch.
Switch# show
flash
Directory of flash:/
2 -rwx 1919
Mar 1 1993 00:06:33 +00:00
private-config.text
3 -rwx 1632
Mar 1 1993 00:06:33 +00:00
config.text
4 -rwx 13336
Mar 1 1993 00:06:33 +00:00
multiple-fs
5 -rwx 11607161
Mar 1 1993 02:37:06 +00:00
c2960-lanbasek9-mz.150-2.SE.bin
6 -rwx 616
Mar 1 1993 00:07:13 +00:00 vlan.dat
32514048 bytes total (20886528 bytes free)
Switch#
Step 3:
Delete the VLAN file.
a.
If the vlan.dat file was found in flash, then delete this file.
Switch# delete
vlan.dat
Delete filename [vlan.dat]?
You will be prompted to verify the file
name. At this point, you can change the file name or just press Enter if you
have entered the name correctly.
b.
When you are prompted to delete
this file, press Enter to confirm the deletion. (Pressing any other key will
abort the deletion.)
Delete flash:/vlan.dat? [confirm]
Switch#
Step 4:
Erase the startup configuration
file.
Use the erase startup-config command to erase the startup configuration
file from NVRAM. When you are prompted to remove the configuration file, press Enter
to confirm the erase. (Pressing any other key will abort the operation.)
Switch# erase
startup-config
Erasing the nvram filesystem will remove
all configuration files! Continue? [confirm]
[OK]
Erase of nvram: complete
Switch#
Step 5:
Reload the switch.
Reload the switch to remove any old
configuration information from memory. When you are prompted to reload the
switch, press Enter to proceed with the reload. (Pressing any other key will
abort the reload.)
Switch# reload
Proceed with reload? [confirm]
Note: You may receive a prompt to save the running configuration prior
to reloading the switch. Type no and
press Enter.
System configuration has been modified.
Save? [yes/no]: no
Step 6:
Bypass the initial
configuration dialog.
After the switch reloads, you should see
a prompt to enter the initial configuration dialog. Type no at the prompt and press Enter.
Would you like to enter the initial
configuration dialog? [yes/no]: no
Switch>
Reflection
1.
Why is it necessary to erase
the startup configuration before reloading the router?
Answer: the results of my lab may be unpredictable.
_______________________________________________________________________________________
2.
You find a couple
configurations issues after saving the running configuration to the startup configuration,
so you make the necessary changes to fix those issues. If you were to reload
the device now, what configuration would be restored to the device after the
reload?
Answer: After the switch reloads, type no at
the prompt and press Enter.
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