8.2.1.4 Packet Tracer – Designing and Implementing a VLSM Addressing Scheme

8.2.1.4 Packet Tracer – Designing and Implementing a VLSM Addressing Scheme

From year to year, Cisco has updated many versions with difference questions. The latest version is version 6.0 in 2018. What is your version? It depends on your instructor creating your class. We recommend you to go thought all version if you are not clear. While you take online test with netacad.com, You may get random questions from all version. Each version have 1 to 10 different questions or more. After you review all questions, You should practice with our online test system by go to "Online Test" link below.

Version 5.02Version 5.1Version 6.0Online Assessment
Chapter 8 ExamChapter 8 ExamChapter 8 ExamOnline Test
Next Chapter
Chapter 9 ExamChapter 9 ExamChapter 9 ExamOnline Test
Lab Activities
8.1.4.7 Packet Tracer – Subnetting Scenario 1
8.1.4.7 Packet Tracer – Subnetting Scenario
8.2.1.4 Packet Tracer – Designing and Implementing a VLSM Addressing Scheme
8.3.1.4 Packet Tracer – Implementing a Subnetted IPv6 Addressing Scheme
8.4.1.2 Packet Tracer – Skills Integration Challenge

Packet Tracer – Designing and Implementing a VLSM Addressing Scheme (Answer Version)

Answer Note: Red font color or gray highlights indicate text that appears in the Answer copy only.

Topology

You will receive one of three possible topologies.

Addressing Table

DeviceInterfaceIP AddressSubnet MaskDefault Gateway
[[R1Name]]G0/0[[R1G0Add]][[R1G0Sub]]N/A
G0/1[[R1G1Add]][[R1G1Sub]]N/A
S0/0/0[[R1S0Add]][[R1S0Sub]]N/A
[[R2Name]]G0/0[[R2G0Add]][[R2G0Sub]]N/A
G0/1[[R2G1Add]][[R2G1Sub]]N/A
S0/0/0[[R2S0Add]][[R2S0Sub]]N/A
[[S1Name]]VLAN 1[[S1Add]][[S1Sub]][[R1G0Add]]
[[S2Name]]VLAN 1[[S2Add]][[S2Sub]][[R1G1Add]]
[[S3Name]]VLAN 1[[S3Add]][[S3Sub]][[R2G0Add]]
[[S4Name]]VLAN 1[[S4Add]][[S4Sub]][[R2G1Add]]
[[PC1Name]]NIC[[PC1Add]][[PC1Sub]][[R1G0Add]]
[[PC2Name]]NIC[[PC2Add]][[PC2Sub]][[R1G1Add]]
[[PC3Name]]NIC[[PC3Add]][[PC3Sub]][[R2G0Add]]
[[PC4Name]]NIC[[PC4Add]][[PC4Sub]][[R2G1Add]]

Objectives

Part 1: Examine the Network Requirements

Part 2: Design the VLSM Addressing Scheme

Part 3: Assign IP Addresses to Devices and Verify Connectivity

Background

In this activity, you are given a /24 network address to use to design a VLSM addressing scheme. Based on a set of requirements, you will assign subnets and addressing, configure devices and verify connectivity.

Part 1: Examine the Network Requirements

Step 1: Determine the number of subnets needed.

You will subnet the network address [[DisplayNet]]. The network has the following requirements:

  • [[S1Name]] LAN will require [[HostReg1]] host IP addresses
  • [[S2Name]] LAN will require [[HostReg2]] host IP addresses
  • [[S3Name]] LAN will require [[HostReg3]] host IP addresses
  • [[S4Name]] LAN will require [[HostReg4]] host IP addresses

How many subnets are needed in the network topology? 5

Step 2: Determine the subnet mask information for each subnet.

  1. Which subnet mask will accommodate the number of IP addresses required for [[S1Name]]?
    • How many usable host addresses will this subnet support?
  2. Which subnet mask will accommodate the number of IP addresses required for [[S2Name]]?
    • How many usable host addresses will this subnet support?
  3. Which subnet mask will accommodate the number of IP addresses required for [[S3Name]]?
    • How many usable host addresses will this subnet support?
  4. Which subnet mask will accommodate the number of IP addresses required for [[S4Name]]?
    • How many usable host addresses will this subnet support?
  5. Which subnet mask will accommodate the number of IP addresses required for the connection between [[R1Name]] and [[R2Name]]?

Part 2: Design the VLSM Addressing Scheme

Step 1: Divide the [[DisplayNet]] network based on the number of hosts per subnet.

  1. Use the first subnet to accommodate the largest LAN.
  2. Use the second subnet to accommodate the second largest LAN.
  3. Use the third subnet to accommodate the third largest LAN.
  4. Use the fourth subnet to accommodate the fourth largest LAN.
  5. Use the fifth subnet to accommodate the connection between [[R1Name]] and [[R2Name]].

Step 2: Document the VLSM subnets.

Complete the Subnet Table, listing the subnet descriptions (e.g. [[S1Name]] LAN), number of hosts needed, then network address for the subnet, the first usable host address, and the broadcast address. Repeat until all addresses are listed.

Subnet Table

Note: The correct answers for this table are variable depending on the scenario received. Refer to the Answer Notes at the end of these instructions for further information. The format here follows what the student used in Designing and Implementing a VLSM Addressing Scheme.

Subnet DescriptionNumber of Hosts NeededNetwork Address/CIDRFirst Usable Host AddressBroadcast Address

Step 3: Document the addressing scheme.

  1. Assign the first usable IP addresses to [[R1Name]] for the two LAN links and the WAN link.
  2. Assign the first usable IP addresses to [[R2Name]] for the two LANs links. Assign the last usable IP address for the WAN link.
  3. Assign the second usable IP addresses to the switches.
  4. Assign the last usable IP addresses to the hosts.

Part 3: Assign IP Addresses to Devices and Verify Connectivity

Most of the IP addressing is already configured on this network. Implement the following steps to complete the addressing configuration.

Step 1: Configure IP addressing on [[R1Name]] LAN interfaces.

Step 2: Configure IP addressing on [[S3Name]], including the default gateway.

Step 3: Configure IP addressing on [[PC4Name]], including the default gateway.

Step 4: Verify connectivity.

You can only verify connectivity from [[R1Name]], [[S3Name]], and [[PC4Name]]. However, you should be able to ping every IP address listed in the Addressing Table.

Suggested Scoring Rubric

Note: The majority of points are allocated to designing and documenting the addressing scheme. Implementation of the addresses in Packet Tracer is of minimal consideration.

Activity SectionQuestion LocationPossible PointsEarned Points
Part 1: Examine the Network RequirementsStep 11
Step 24
Part 1 Total5
Part 2: Design the VLSM Addressing Scheme
Complete Subnet Table25
Document Addressing40
Part 2 Total65
Packet Tracer Score30
Total Score100

ID:[[indexAdds]][[indexNames]][[indexTopos]]

Answer Notes:

The following addressing tables represent the three possible addressing scenarios the student may get. Note that the Device column is independent of the addressing scheme. For example, a student could receive the device names from Scenario 1 and the addressing scheme from Scenario 3. In addition, the three possible topologies are also independent of the device names and the addressing scheme (click reset in the activity to see the different topologies). Therefore, this activity uses three independent variables with three possible values each for a total of 27 possible combinations (3 device names x 3 addressing schemes x 3 topologies = 27 isomorphs).

Scenario 1 – Network Address: 10.11.48.0/24

Subnet Table

Subnet DescriptionNumber of Hosts NeededNetwork Address/CIDRFirst Usable Host AddressLast Usable Host AddressBroadcast Address
Host-D LAN6010.11.48.0/2610.11.48.110.11.48.6210.11.48.63
Host-B LAN3010.11.48.64/2710.11.48.6510.11.48.9410.11.48.95
Host-A LAN1410.11.48.96/2810.11.48.9710.11.48.11010.11.48.111
Host-C LAN610.11.48.112/2910.11.48.11310.11.48.11810.11.48.119
WAN Link210.11.48.120/3010.11.48.12110.11.48.12210.11.48.123
DeviceInterfaceAddressSubnet MaskDefault Gateway
Building1G0/010.11.48.97255.255.255.240N/A
G0/110.11.48.65255.255.255.224N/A
S0/0/010.11.48.121255.255.255.252N/A
Building2G0/010.11.48.113255.255.255.248N/A
G0/110.11.48.1255.255.255.192N/A
S0/0/010.11.48.122255.255.255.252N/A
ASW1VLAN 110.11.48.98255.255.255.24010.11.48.97
ASW2VLAN 110.11.48.66255.255.255.22410.11.48.65
ASW3VLAN 110.11.48.114255.255.255.24810.11.48.113
ASW4VLAN 110.11.48.2255.255.255.19210.11.48.1
Host-ANIC10.11.48.110255.255.255.24010.11.48.97
Host-BNIC10.11.48.94255.255.255.22410.11.48.65
Host-CNIC10.11.48.118255.255.255.24810.11.48.113
Host-DNIC10.11.48.62255.255.255.19210.11.48.1

Building 1

en

conf t

int g0/0

ip add 10.11.48.97 255.255.255.240

no shut

int g0/1

ip add 10.11.48.65 255.255.255.224

no shut

ASW3

en

conf t

int vlan 1

ip add 10.11.48.114 255.255.255.248

no shut

ip def 10.11.48.113

Scenario 2 – Network Address: 172.31.103.0/24

Subnet Table

Subnet DescriptionNumber of Hosts NeededNetwork Address/CIDRFirst Usable Host AddressLast Usable Host AddressBroadcast Address
PC-A LAN27172.31.103.0/27172.31.103.1172.31.103.30172.31.103.31
PC-B LAN25172.31.103.32/27172.31.103.33172.31.103.62172.31.103.63
PC-C LAN14172.31.103.64/28172.31.103.65172.31.103.78172.31.103.79
PC-D LAN8172.31.103.80/28172.31.103.81172.31.103.94172.31.103.95
WAN Link2172.31.103.96/30172.31.103.97172.31.103.98172.31.103.99

 

DeviceInterfaceAddressSubnet MaskDefault Gateway
Branch1G0/0172.31.103.1255.255.255.224N/A
G0/1172.31.103.33255.255.255.224N/A
S0/0/0172.31.103.97255.255.255.252N/A
Branch2G0/0172.31.103.65255.255.255.240N/A
G0/1172.31.103.81255.255.255.240N/A
S0/0/0172.31.103.98255.255.255.252N/A
Room-114VLAN 1172.31.103.2255.255.255.224172.31.103.1
Room-279VLAN 1172.31.103.34255.255.255.224172.31.103.33
Room-312VLAN 1172.31.103.66255.255.255.240172.31.103.65
Room-407VLAN 1172.31.103.82255.255.255.240172.31.103.81
PC-ANIC172.31.103.30255.255.255.224172.31.103.1
PC-BNIC172.31.103.62255.255.255.224172.31.103.33
PC-CNIC172.31.103.78255.255.255.240172.31.103.65
PC-DNIC172.31.103.94255.255.255.240172.31.103.81

Branch 1

en

conf t

int g0/0

ip add 172.31.103.1 255.255.255.224

no shut

int g0/1

ip add 172.31.103.33 255.255.255.224

no shut

Room-312

en

conf t

int vlan 1

ip add 172.31.103.66 255.255.255.240

no shut

ip def 172.31.103.65

Scenario 3 – Network Address: 192.168.72.0/24

Subnet Table

Subnet DescriptionNumber of Hosts NeededNetwork Address/CIDRFirst Usable Host AddressLast Usable Host AddressBroadcast Address
User-4 LAN58192.168.72.0/26192.168.72.1192.168.72.62192.168.72.63
User-3 LAN29192.168.72.64/27192.168.72.65192.168.72.94192.168.72.95
User-2 LAN15192.168.72.96/27192.168.72.97192.168.72.126192.168.72.127
User-1 LAN7192.168.72.128/28192.168.72.129192.168.72.142192.168.72.143
WAN Link2192.168.72.144/30192.168.72.145192.168.72.146192.168.72.147

 

DeviceInterfaceAddressSubnet MaskDefault Gateway
Remote-Site1G0/0192.168.72.129255.255.255.240N/A
G0/1192.168.72.97255.255.255.224N/A
S0/0/0192.168.72.145255.255.255.252N/A
Remote-Site2G0/0192.168.72.65255.255.255.224N/A
G0/1192.168.72.1255.255.255.192N/A
S0/0/0192.168.72.146255.255.255.252N/A
Sw1VLAN 1192.168.72.130255.255.255.240192.168.72.129
Sw2VLAN 1192.168.72.98255.255.255.224192.168.72.97
Sw3VLAN 1192.168.72.66255.255.255.224192.168.72.65
Sw4VLAN 1192.168.72.2255.255.255.192192.168.72.1
User-1NIC192.168.72.142255.255.255.240192.168.72.129
User-2NIC192.168.72.126255.255.255.224192.168.72.97
User-3NIC192.168.72.94255.255.255.224192.168.72.65
User-4NIC192.168.72.62255.255.255.192192.168.72.1

Remote-Site1

en

conf t

int g0/0

ip add 192.168.72.129 255.255.255.240

no shut

int g0/1

ip add 192.168.72.97 255.255.255.224

no shut

Sw-3

en

conf t

int vlan 1

ip add 192.168.72.66 255.255.255.224

no shut

ip def 192.168.72.65

From year to year, Cisco has updated many versions with difference questions. The latest version is version 6.0 in 2018. What is your version? It depends on your instructor creating your class. We recommend you to go thought all version if you are not clear. While you take online test with netacad.com, You may get random questions from all version. Each version have 1 to 10 different questions or more. After you review all questions, You should practice with our online test system by go to "Online Test" link below.

Version 5.02 Version 5.1 Version 6.0 Online Assessment
Chapter 8 Exam Chapter 8 Exam Chapter 8 Exam Online Test
Next Chapter
Chapter 9 Exam Chapter 9 Exam Chapter 9 Exam Online Test
Lab Activities
8.1.4.7 Packet Tracer – Subnetting Scenario 1
8.1.4.7 Packet Tracer – Subnetting Scenario
8.2.1.4 Packet Tracer – Designing and Implementing a VLSM Addressing Scheme
8.3.1.4 Packet Tracer – Implementing a Subnetted IPv6 Addressing Scheme
8.4.1.2 Packet Tracer – Skills Integration Challenge