17.8.1 Lab – Design and Build a Small Network Answers


 

Objectives
Describe the process of creating, configuring, and validating a small network that consists of directly linked segments.

context and current situation
Take note that it is recommended that students do this assignment in groups of no more than two or three.

Conceive and construct a network from the ground up.

Your design has to include at least two personal computers, one Cisco 4321 router, and two Cisco 2960 switches as a minimum.
Complete the configuration of the network, then choose either IPv4 or IPv6 (subnetting must be included as a part of your addressing scheme).
Perform at least five show commands in order to validate the network.
SSH, safe passwords and console passwords should all be used to protect the network (minimum).
Make a grading rubric that may be used for unofficial assessments by classmates. Bring your capstone project to the attention of the class, and be prepared to field questions and comments from your fellow students.

After finishing all of the chapters, you might consider turning in this optional modelling activity as a graded assignment so that you may get feedback on it. Students should be able to demonstrate the process of designing, configuring, verifying, and securing local area networks (LANs). This project places a significant emphasis on documentation, and students are expected to be able to defend their network designs and demonstrate their verification using display commands.

Resources That Are Necessary
a packet tracker
a student- or group-developed rubric for the purpose of grading the assignment.
Reflection Questions
What was the most challenging aspect of participating in this activity?
Please type your responses in this box.

Answers will vary.

Why do you believe it is so crucial to record networks, both for this activity and in the actual world in general?
Please type your responses in this box.

Finishing up the document

Documentation is very necessary for effective network administration; in the absence of it, administrators would need to manually rebuild network topologies and validate addresses, among other tasks. This consumes time that may be put to better use elsewhere.

Here's an example of documentation and a suggested rubric for you to think about:

Please take note that the points won category on this rubric is worth a total of 100 points (if minimum standards are met). Answers should consider awarding bonus points for extra or advanced effort in any of the required categories. Build a simple network consisting of segments that are directly linked to one another, using at least one router, two switches, and two computers, and provide a screenshot of the network in the final documentation you produce. You will need to configure the network so that it includes switches, routers, and end devices. Additionally, you will need to assign your own network addresses. You are required to employ subnetting of some kind, and you may choose between IPv4 and IPv6 for the logical addressing of your network. Make sure to include a table in your final documentation that details the addressing system you used for the physical components of the router, switch, and computer.
Verify the network by issuing at least five different show commands in order to establish a performance baseline. You should be able to explain why you picked the display commands that you did and what the meaning of the result is. Save screenshots of your work and include them in the documentation you make at the end. 

Cap_rtr# show arp

ProtocolAddressAge (min)Hardware AddrTypeInterface

Internet192.168.1.1–00D0.9741.9101ARPAGigabitEthernet0/0/0

Internet192.168.1.101000A.4120.9039ARPAGigabitEthernet0/0/0

Internet192.168.1.33–00D0.9741.9102ARPAGigabitEthernet0/0/1

Internet192.168.1.40100D0.BCC3.BBEBARPAGigabitEthernet0/0/1

Internet192.168.1.6200060.4779.5A11ARPAGigabitEthernet0/0/1

Cap_rtr# show int g0/0/0

GigabitEthernet0/0/0 is up, line protocol is up (connected)

Hardware is Lance, address is 00d0.9741.9101 (bia 00d0.9741.9101)

Internet address is 192.168.1.1/27

MTU 1500 bytes, BW 1000000 Kbit, DLY 100 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

Full-duplex, 100Mb/s, media type is RJ45

ARP type: ARPA, ARP Timeout 04:00:00,

Last input 00:00:08, output 00:00:05, output hang never

Last clearing of “show interface” counters never


Input queue: 0/75/0 (size/max/drops); Total output drops: 0

Queueing strategy: fifo

Output queue :0/40 (size/max)

5 minute input rate 27 bits/sec, 0 packets/sec

5 minute output rate 23 bits/sec, 0 packets/sec

8 packets input, 1024 bytes, 0 no buffer

Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

0 input packets with dribble condition detected

7 packets output, 896 bytes, 0 underruns

0 output errors, 0 collisions, 1 interface resets

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

Cap_rtr# show ip route

Codes: L – local, C – connected, S – static, R – RIP, M – mobile, B – BGP

D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inter area

N1 – OSPF NSSA external type 1, N2 – OSPF NSSA external type 2

E1 – OSPF external type 1, E2 – OSPF external type 2, E – EGP

i – IS-IS, L1 – IS-IS level-1, L2 – IS-IS level-2, ia – IS-IS inter area

* – candidate default, U – per-user static route, o – ODR

P – periodic downloaded static route

Gateway of last resort is not set

192.168.1.0/24 is variably subnetted, 4 subnets, 2 masks

C 192.168.1.0/27 is directly connected, GigabitEthernet0/0/0

L 192.168.1.1/32 is directly connected, GigabitEthernet0/0/0

C 192.168.1.32/27 is directly connected, GigabitEthernet0/0/1

L 192.168.1.33/32 is directly connected, GigabitEthernet0/0/1

Cap_sw1# show vlan brief

VLAN Name Status Ports

—- ——————————– ——— ——————————-

1 default activeFa0/1, Fa0/2, Fa0/3, Fa0/4

Fa0/5, Fa0/6, Fa0/7, Fa0/8

Fa0/9, Fa0/10, Fa0/11, Fa0/12

Fa0/13, Fa0/14, Fa0/15, Fa0/16

Fa0/17, Fa0/18, Fa0/19, Fa0/20

Fa0/21, Fa0/22, Fa0/23, Fa0/24

Gig0/1, Gig0/2

1002 fddi-default active

1003 token-ring-defaultactive

1004 fddinet-default active


1005 trnet-default active

Cap_sw2> traceroute 192.168.1.10

Type escape sequence to abort.

Tracing the route to 192.168.1.10

1 192.168.1.33 39 msec 0 msec 0 msec

2 192.168.1.10 13 msec 21 msec 15 msec

Secure the network using common configuration to include SSH, secure passwords, console security, etc. and verify the commands configured by enacting a show running-configuration screen as output. Include in your final documentation.

Cap_rtr# show run

Building configuration…

Current configuration : 831 bytes

!

version 15.4

no service timestamps log datetime msec

no service timestamps debug datetime msec

service password-encryption

!

hostname Cap_rtr

!

enable secret 5 $1$mERr$5.a6P4JqbNiMX01usIfka/

!

ip cef

no ipv6 cef

!

username SSHAdmin secret 5 $1$mERr$WvpW0n5HghRrqnrwXCUUl.

!

ip domain-name capstone.lab

!

spanning-tree mode pvst

!

interface GigabitEthernet0/0/0

ip address 192.168.1.1 255.255.255.224

duplex auto

speed auto

!

interface GigabitEthernet0/0/1


ip address 192.168.1.33 255.255.255.224

duplex auto

speed auto

!

interface Vlan1

no ip address

shutdown

!

ip classless

!

ip flow-export version 9

!

!

line con 0

password 7 0822455D0A16544541

login local

!

line aux 0

!

line vty 0 4

password 7 0822455D0A16544541

login local

transport input ssh

!

!

end

Cap_rtr#

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