Static-course-Assets.s3.Amazonaws.com_NetBasics50ENU_files_2.3.3.4 Lab - Building a Simple Network

8/14/2019 Static-course-Assets.s3.Amazonaws.com_NetBasics50ENU_files_2.3.3.4 Lab - Building a Simple Network

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Lab - Building a Simple Network

2013 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public. Page 2of 14

local passwords, and login banner. Use showcommands to display the running configuration, IOS version,and interface status. Use the copycommand to save device configurations.

You will apply IP addressing for this lab to the PCs to enable communication between these two devices. Usethe pingutility to verify connectivity.

Note: The switches used are Cisco Catalyst 2960s with Cisco IOS Release 15.0(2) (lanbasek9 image). Otherswitches and Cisco IOS versions can be used. Depending on the model and Cisco IOS version, thecommands available and output produced might vary from what is shown in the labs.

Note: Make sure that the switches have been erased and have no startup configurations. Refer to Appendix Afor the procedure to initialize and reload a switch.

Required Resources

2 Switches (Cisco 2960 with Cisco IOS Release 15.0(2) lanbasek9 image or comparable)

2 PCs (Windows 7, Vista, or XP with terminal emulation program, such as Tera Term)

Console cables to configure the Cisco IOS devices via the console ports

Ethernet cables as shown in the topology

Part 1: Set Up the Network Topology (Ethernet only)

In Part 1, you will cable the devices together according to the network topology.

Step 1: Power on the devices.

Power on all devices in the topology. The switches do not have a power switch; they will power on as soon asyou plug in the power cord.

Step 2: Connect the two switches.

Connect one end of an Ethernet cable to F0/1 on S1 and the other end of the cable to F0/1 on S2. You shouldsee the lights for F0/1 on both switches turn amber and then green. This indicates that the switches have

been connected correctly.

Step 3: Connect the PCs to their respective swi tches.

a. Connect one end of the second Ethernet cable to the NIC port on PC-A. Connect the other end of thecable to F0/6 on S1. After connecting the PC to the switch, you should see the light for F0/6 turn amberand then green, indicating that PC-A has been connected correctly.

b. Connect one end of the last Ethernet cable to the NIC port on PC-B. Connect the other end of the cableto F0/18 on S2. After connecting the PC to the switch, you should see the light for F0/18 turn amber andthen green, indicating that the PC-B has been connected correctly.

Step 4: Visually inspect network connections.

After cabling the network devices, take a moment to carefully verify the connections to minimize the timerequired to troubleshoot network connectivity issues later.


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Part 3: Configure and Verify Basic Switch Settings

Step 1: Console into the switch.

Using Tera Term, establish a console connection to the switch from PC-A.

Step 2: Enter priv ileged EXEC mode.

You can access all switch commands in privileged EXEC mode. The privileged EXEC command set includesthose commands contained in user EXEC mode, as well as the configurecommand through which access tothe remaining command modes are gained. Enter privileged EXEC mode by entering the enablecommand.

Swi t ch> enable

Swi t ch#

The prompt changed from Switch>to Switch#which indicates privileged EXEC mode.

Step 3: Enter conf iguration mode.

Use the configuration terminalcommand to enter configuration mode.

Swi t ch# configure terminalEnt er conf i gur at i on commands, one per l i ne. End wi t h CNTL/ Z.

Swi t ch( conf i g) #

The prompt changed to reflect global configuration mode.

Step 4: Give the swi tch a name.

Use the hostnamecommand to change the switch name to S1.

Swi t ch( conf i g) # hostname S1

S1( conf i g) #

Step 5: Prevent unwanted DNS lookups.

To prevent the switch from attempting to translate incorrectly entered commands as though they werehostnames, disable the Domain Name System (DNS) lookup.

S1( conf i g) # no ip domain-lookup

S1( conf i g) #

Step 6: Enter local passwords.

To prevent unauthorized access to the switch, passwords must be configured.

S1( conf i g) # enable secret class

S1( conf i g) # line con 0

S1( conf i g- l i ne) #password cisco

S1( conf i g- l i ne) # login

S1( conf i g- l i ne) # exit

S1( conf i g) #

Step 7: Enter a login MOTD banner.

A login banner, known as the message of the day (MOTD) banner, should be configured to warn anyoneaccessing the switch that unauthorized access will not be tolerated.


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The banner motdcommand requires the use of delimiters to identify the content of the banner message. Thedelimiting character can be any character as long as it does not occur in the message. For this reason,symbols, such as the #, are often used.

S1( conf i g) #banner motd #

Ent er TEXT message. End wi t h the charact er ' #' .

Unauthorized access is strictly prohibited and prosecuted to the full extent

of the law. #

S1( conf i g) # exit

S1#

Step 8: Save the conf iguration.

Use the copycommand to save the running configuration to the startup file on non-volatile random accessmemory(NVRAM).

S1# copy running-config startup-config

Dest i nat i on f i l ename [ st ar t up- conf i g] ? [Enter]

Bui l di ng conf i gurati on. . .

[ OK]

S1#

Step 9: Display the current configuration.

The show running-configcommand displays the entire running configuration, one page at a time. Use thespacebar to advance paging. The commands configured in Steps 1 8 are highlighted below.

S1# show running-config

Bui l di ng conf i gurati on. . .

Cur r ent conf i gur ati on : 1409 bytes

!

! Last conf i gur at i on change at 03: 49: 17 UTC Mon Mar 1 1993

!

ver si on 15. 0

no ser vi ce pad

ser vi ce t i mest amps debug dat et i me msec

ser vi ce t i mest amps l og datet i me msec

no ser vi ce password- encr ypt i on

!

host name S1

!

boot - st ar t - mar ker

boot - end- marker

!enabl e secr et 4 06YFDUHH61wAE/ kLkDq9BGho1QM5EnRt oyr 8cHAUg. 2

!

no aaa new- model

syst em mt u r out i ng 1500

!

!

no i p domai n- l ookup


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!

!

banner mot d C

Unaut hor i zed access i s st r i ct l y pr ohi bi t ed and pr osecut ed t o the f ul l ext ent of t hel aw. C

!

l i ne con 0

password ci sco

l ogi n

l i ne vt y 0 4

l ogi n

l i ne vt y 5 15

l ogi n

!

end

S1#

Step 10: Display the IOS version and other useful switch information.

Use the show versioncommand to display the IOS version that the switch is running, along with other usefulinformation. Again, you will need to use the spacebarto advance through the displayed information.

S1# show version

Ci sco I OS Sof t ware, C2960 Sof t ware ( C2960- LANBASEK9- M) , Versi on 15. 0(2)SE, RELEASESOFTWARE ( f c1)

Techni cal Suppor t : ht t p: / / www. ci sco. com/ t echsuppor t

Copyr i ght ( c) 1986- 2012 by Ci sco Syst ems, I nc.

Compi l ed Sat 28- J ul - 12 00: 29 by pr od_r el _t eam

ROM: Boot st r ap pr ogr am i s C2960 boot l oader

BOOTLDR: C2960 Boot Loader ( C2960- HBOOT- M) Ver si on 12. 2( 53r) SEY3, RELEASE SOFTWARE(fc1)

S1 upt i me i s 1 hour, 38 mi nut es

Syst em r etur ned t o ROM by power- on

Syst em i mage f i l e i s " f l ash: / c2960- l anbasek9- mz. 150- 2. SE. bi n"

Thi s product cont ai ns cr yptographi c f eatures and i s subj ect t o Uni t ed

St ates and l ocal count r y l aws gover ni ng i mpor t , export , t r ansf er and

use. Del i ver y of Ci sco crypt ogr aphi c product s does not i mpl y

t hi r d- par t y aut hor i t y to i mport , expor t , di st r i but e or use encrypt i on.

I mpor t er s, expor t er s, di st r i but or s and user s ar e r esponsi bl e f or

compl i ance wi t h U. S. and l ocal count r y l aws. By usi ng t hi s pr oduct you

agr ee t o compl y wi t h appl i cabl e l aws and r egul at i ons. I f you are unabl e

t o compl y wi t h U. S. and l ocal l aws, r eturn t hi s pr oduct i mmedi at el y.


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A summary of U. S. l aws governi ng Ci sco cr ypt ogr aphi c product s may be f ound at :

ht t p: / / www. ci sco. com/ wwl / expor t / crypt o/ t ool / st qr g. ht ml

I f you r equi r e f ur t her assi st ance pl ease cont act us by sendi ng emai l t o

expor t @ci sco. com.

ci sco WS- C2960- 24TT- L ( PowerPC405) processor ( r evi si on R0) wi t h 65536K byt es ofmemor y.

Processor boar d I D FCQ1628Y5LE

Last r eset f r ompower - on

1 Vi r t ual Et her net i nt er f ace

24 Fast Et her net i nt er f aces

2 Gi gabi t Et her net i nt er f aces

The password- r ecovery mechani sm i s enabl ed.

64K bytes of f l ash- si mul at ed non- vol ati l e conf i gur ati on memory.

Base ether net MAC Addr ess : 0C: D9: 96: E2: 3D: 00

Mot herboard assembl y number : 73- 12600- 06

Power suppl y par t number : 341- 0097- 03

Mot herboard ser i al number : FCQ16270N5G

Power suppl y ser i al number : DCA1616884D

Model r evi si on number : R0

Mother board r evi si on number : A0

Model number : WS- C2960- 24TT- L

Syst em ser i al number : FCQ1628Y5LE

Top Assembl y Par t Number : 800- 32797- 02

Top Assembl y Revi si on Number : A0

Vers i on I D : V11

CLEI Code Number : COM3L00BRF

Hardware Board Revi si on Number : 0x0A

Swi t ch Por t s Model SWVersi on SWI mage

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

* 1 26 WS- C2960- 24TT- L 15. 0( 2)SE C2960- LANBASEK9- M

Conf i gur at i on r egi st er i s 0xF

S1#

Step 11: Display the s tatus of the connected interfaces on the switch.

To check the status of the connected interfaces, use the show ip interface brief command. Press thespacebar to advance to the end of the list.

S1# show ip interface brief

I nt erf ace I P- Addr ess OK? Method St atus Prot ocol

Vl an1 unass i gned YES unset up up

Fast Ether net 0/ 1 unassi gned YES unset up up

Fast Ether net 0/ 2 unassi gned YES unset down down



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Fast Ether net 0/ 6 unassi gned YES unset up up















Fast Ether net 0/ 21 unassi gned YES unset down downFast Ether net 0/ 22 unassi gned YES unset down down



Gi gabi t Ether net 0/ 1 unassi gned YES unset down down

Gi gabi t Ether net 0/ 2 unassi gned YES unset down down

S1#

Step 12: Repeat Steps 1 to 12 to configure swi tch S2.

The only difference for this step is to change the hostname to S2.

Step 13: Record the interface status for the following interfaces.

Interface

S1 S2

Status Protocol Status Protocol

F0/1

F0/6

F0/18

VLAN 1

Why are some FastEthernet ports on the switches are up and others are down?


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Erasi ng t he nvr am f i l esyst em wi l l remove al l conf i gurat i on f i l es! Cont i nue? [ conf i r m]

[ OK]

Erase of nvr am: compl ete

Swi t ch#

Step 5: Reload the switch.

Reload the switch to remove any old configuration information from memory. When you are prompted toreload the switch, press Enter to proceed with the reload. (Pressing any other key will abort the reload.)

Swi t ch# reload

Proceed wi t h rel oad? [ conf i r m]

Note: You may receive a prompt to save the running configuration prior to reloading the switch. Type no and press Enter.

Systemconf i gur at i on has been modi f i ed. 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.Woul d you l i ke t o ent er t he i ni t i al conf i gurat i on di al og? [ yes/ no] : no

Swi t ch>

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