CSE2NFX Network Engineering Fundamental

Assessment 2

IPv4 Addressing

CSE2NFX Network Engineering Fundamental

Before you begin

Objectives

  • To understand IP addressing schemes and subnet addressing.

This is an individual assignment. Students are not permitted to work in a group when writing this assignment.

Copying and Plagiarism

This is an individual assignment. Students are not permitted to work in a group when writing this assignment. Plagiarism is the submission of another person’s work in a manner that gives the impression that the work is their own. La Trobe University treats plagiarism seriously. When detected, penalties are strictly imposed.

Further information can be found on http://www.latrobe.edu.au/students/academicintegrity/explanation/plagiarism

Submission Guidelines

Your assignment submission should be typed, not written/drawn by hand. Submit the electronic copy of your assignment through the subject LMS.

Submission after the deadline will incur a penalty of 5% of the available assignment mark per day capped at 5 days. No assignment will be accepted after 5 days. If you have encountered difficulties that lead to late submission or no submission, you should apply for special consideration.

Background

A multinational company called “Andrew & sons” has 4 branch offices around the world. Each of the branch offices has hundreds of hosts.

This assessment has two parts, Part A and Part B. You must complete both parts.

Part A: Design an IP Addressing scheme for a given scenario.

The company would like to restructure their existing network into a new IP addressing scheme to deploy on their various branches.

This task has been assigned to you by your supervisor. Host requirement for each branch is listed below.

  • Branch 1 should accommodate 60 hosts.
  • Branch 2 should accommodate 55 hosts.
  • Branch 3 should accommodate 40 hosts.
  • Branch 4 should accommodate 31 hosts.

You are given 200.168.100.0/24 as the base network address to design the IP subnetting scheme for the company.

Tasks

Design the IP subnetting scheme as per the above-listed requirements.

Task 1: Calculate the subnetting information.

Calculate the followings and complete Table 1.

  • Number of subnet bits (borrowed bits) required to accommodate the addressing requirements
    • Total number of subnet
    • The new subnet mask of the IP subnetting scheme
    • Number of remaining host bits
    • Number of hosts per subnet
    • Useable number of hosts per subnet
Number of subnet bits (borrowed bits) 
Total number of subnets 
New subnet mask (in dotted decimal notation) 
Number of remaining host bits 
Number of hosts/subnet. 
Useable number of hosts/subnet 

Table 1

Task 2: Derive subnetwork address

Derive the subnetwork addresses as per the given answers in Task 1 and based on the following conditions. All calculations/methods that you have used to derive the answers should be included as part of your answer. Complete Table 2 with your answers.

  • Use 0th subnet for Branch 1 Network.
    • Use 1st subnet for Branch 2 Network.
    • Use 2nd subnet for Branch 3 Network.
    • Use 3rd subnet for Branch 4 Network.
Network namesSubnet numbersSubnet      Address                 in dotted-decimal notationNew Subnet Mask in dotted-decimal notation
Branch 1 Network0th Subnet  
Branch 2 Network1st Subnet  
Branch 3 Network2nd Subnet  
Branch 4 Network3rd subnet  

Table 2

Task 3:    Calculating the host address ranges

Calculate the host address range and useable host address range of subnetworks derived in Task 2. All calculations/methods that you have used to derive the answers should be included as part of your answer. Complete Table 3 with your answers.

  Network namesSubnet numbersFirst                   useable address in dotted- decimal notationLast useable address in dotted- decimal notationBroadcast address in dotted- decimal notation
Branch 1 Network0th Subnet   
Branch 2 Network1st Subnet   
Branch 3 Network2nd Subnet   
Branch 4 Network3rd subnet   

Part B: Re-design an IP addressing scheme as per changed requirements.

During the next five years, there were two other companies acquired by “Andrew & Sons.” Moreover, the company experienced immense growth in production, the number of branches, and the number of employees.

Altogether there are 10 branches now.

Host requirement for each branch is as follows.

  • Branch 1 should accommodate 2050 hosts.
  • Branch 2 should accommodate 2100 hosts.
  • Branch 3 should accommodate 4094 hosts.
  • Branch 4 should accommodate 1030 hosts.
  • Branch 5 should accommodate 950 hosts.
  • Branch 6 should accommodate 4092 hosts.
  • Branch 7 should accommodate 2049 hosts.
  • Branch 8 should accommodate 1025 hosts.
  • Branch 9 should accommodate 4094 hosts.
  • Branch 10 should accommodate 900 hosts.

The company would like to re-design their IP addressing scheme to facilitate this new requirement. This task has been assigned to you by your supervisor.

You are given 170.168.0.0/16 as the base network address to design the IP subnetting scheme for the company.

Tasks

Design the IP subnetting scheme as per the above-listed requirements.

Task 1: Calculate the subnetting information.

Calculate followings. All calculations/methods that you have used to derive the answers should be included as part of your answer — complete Table 1 with your answers.

  • Number of subnet bits (borrowed bits) required to accommodate the addressing requirements
    • Total number of subnets
    • The new subnet mask of the IP subnetting scheme
    • Number of remaining host bits.
    • Number of hosts per subnet.
    • Useable number of hosts per subnet
Number of subnet bits (borrowed bits) 
Total number of subnets 
New subnet mask (in dotted decimal notation) 
Number of remaining host bits 
Number of hosts/subnet. 
Useable number of hosts/subnet 

Table 1

Task 2: Derive subnetwork address

Derive the subnetwork addresses as per the given in Task 1 and based on the following conditions. All calculations/methods that you have used to derive the answers should be included as part of your answer.

Complete Table 2 with your answers

  • Use 0th subnet for Branch 1 Network.
    • Use 1st subnet for Branch 2 Network.
    • Use 2nd subnet for Branch 3 Network.
    • Use 3rd subnet for Branch 4 Network.
    • Use 4th subnet for Branch 5 Network.
    • Use 5th subnet for Branch 6 Network.
    • Use 6th subnet for Branch 7 Network.
    • Use 7th subnet for Branch 8 Network.
    • Use 8th subnet for Branch 9 Network.
    • Use 9thsubnet for Branch 10 Network.
Network namesSubnet numbersSubnet      Address                 in dotted-decimal notationNew Subnet Mask in dotted-decimal notation
Branch 1 Network0th Subnet  
Branch 2 Network1st Subnet  
Branch 3 Network2nd Subnet  
Branch 4 Network3rd subnet  
Branch 5 Network4th subnet  
Branch 6 Network5th subnet  
Branch 7 Network6th subnet  
Branch 8 Network7th subnet  
Branch 9 Network8th subnet  
Branch 10 Network9th subnet  

Table 2

Task 3:    Calculating the host address ranges

Calculate the host address range and useable host address range of subnetworks derived in Task 2. All calculations/methods that you have used to derive the answers should be included as part of your answer.

Complete Table 3 with your answers.

Network namesSubnet numbersFirst                 useable address in dotted- decimal notationLast                 useable address in dotted- decimal notationBroadcast address in dotted- decimal notation
Branch Network10th Subnet  
Branch Network21st Subnet  
Branch Network32nd Subnet  
Branch Network43rd subnet  
Branch Network54th subnet  
Branch Network65th subnet  
Branch Network76th subnet  
Branch Network87th subnet  
Branch Network98th subnet  
Branch Network109th subnet  

Table 3

Submitting your assessment

When you have completed the tasks for both Part A and Part B, submit the assessment on the LP. You should submit the following:

  • Submit your answers in a single word document called xxx_cse2nfx_Assessment 2.docx (where xxx is your student number).

Assessment Marking Criteria

CriteriaMarks
Part A: Design an IP Addressing scheme for a given scenario.
Task 1: Calculate the subnetting information.
All calculations are shown4
Table 1 is completed correctly12
 = 16
Task 2: Derive subnetwork address
Given address used2
All calculations are shown4
Table 2 is completed correctly16
 = 22
Task 3: Calculating the host address ranges
All calculations are shown.4
Table 3 is completed correctly24
 = 28
Part B: Re-design an IP addressing scheme as per changed requirements.
Task 1: Calculate the subnetting information.
All calculations are shown.4
Table 1 is completed correctly12
 = 16
Task 2: Derive subnetwork address
Given address used for calculations2
All calculations are shown.4
Table 2 is completed correctly40
 = 46
Task 3: Calculating the host address ranges
All calculations are shown.4
Table 3 is completed correctly60
 =64
Total= (16+22+28) + (16+46+64)   = 192

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