Nubex Technology: Network Design For LANs And WAN

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Question :

Assessment Details
Qualification Code/TitleICT50415 Diploma of  Information Technology Networking 

Unit of Competency
National Code/TitleICTNWK529 Install and manage complex ICT networks 

Instructions to the Candidates
  • This assessment is to be completed according to the instructions given below in this document.
  • Should you not answer the tasks correctly, you will be given feedback on the results and gaps in knowledge. You will be entitled to one (1) resubmit in showing your competence with this unit.
  • If you are not sure about any aspect of this assessment, please ask for clarification from your assessor.  
  • Please refer to the College re-submission and re-sit policy for more information. 
  • If you have questions and other concerns that may affect your performance in the Assessment, please inform the assessor immediately.
  • Please read the Project carefully then complete all tasks.
  • To be deemed competent for this unit you must achieve a satisfactory result with tasks of this project along with a satisfactory result for the another assessment (written Assessments) 
  • This is an Open book assessment which you will do in your own time but complete in the time designated by your assessor. Remember, that it must be your own work and if you use other sources then you must reference these appropriately
  • Upon completion of your project, you will be required to deliver a 20-minute presentation.
  • This is Individual Assessments. Once you have completed the assessment, please provide the Hard copy of the Assessments to your Trainer/ Assessor.
  • Plagiarism is copying someone else’s work and submitting it as your own. Any Plagiarism will result in a mark of Zero.


Please read carefully the case study and assessment task details below. You are required to produce and present information appropriate to the needs of the required context and to justify why you have made the recommendations in terms of the requirements of the case study.

Case study scenario

You are working as a Network Engineer for Nubex Technology Pty Ltd.  Nubex Technology is currently in the process of setting of seven global DHCP servers as a part of their company expansion across the world.

current network diagram

Fig: Current Network Diagram

Your main job is to design the network architecture design for all 7 LANs and WAN connection to connect all LAN across the world as per given network diagram. You are also asked to design IP address scopes for seven global DHCP servers as part of a project to deploy your organisation’s International email system. Since RIP will be the standard routing protocol, zero subnets will be used to conserve IP addresses. You have been told that Network Engineer for Nubex Technology Pty Ltd.  is going to use private address

After discussion with the company’s IT Manager, you have identified the number of nodes needed for each LAN which is tabulated below.

LocationNumber of Nodes
Sydney (SY)450
Singapore (SG)190
Berlin (BR)55
London (LD)495
Sacramento (SC)77
Tokyo (TK)95
Bombay (BB)27
Router links (For serial connection)

As per Case Study, you need to complete the following Tasks (Task 1- Task 18) as a report format and complete the practical tasks in class using Packet Tracer 6.0.1 and also present the report in class using Microsoft Power point.

Task 1: 

You are required to find out what types of routers are needed and how many of them are required according to given specification.

Task 2: 

You are required to find out how many switches are needed for this complete project and what type of switches will be suitable for each LAN.

Task 3: 

Establish the sitting and types of terminals, processors and required protocols and architecture based on technical specification and requirements.

Task 4:

Set up the layout of the complete network in simulated environment using Router SIM network visualizer application software. 

Task 5: 

Provide details of complete network LAN and WAN diagrams. You need to provide full details of logical and physical topology you going to use, how you going to connect 7 different LAN across different nations, what transmission media would you will and so on.

Task 6:

Design and calculate IP address scopes for seven global DHCP servers as part of a project to deploy your organisation’s International email system

Task 7:

Install and Configure routers, Switches and assign the Dynamic IP address to the LAN Computers and configure appropriate routing Protocol.

Task 8:

Test the entire network Connection using ping commands.

Task 9:

Configure the telnet in each router using telnet.

Task 10:

 Shut down all unused port from all switches

Task 11: 

Implement the Access Control list in such a way that Sydney local area Network can’t ping Bombay Local Network but Bombay Local area network can ping Sydney Local area network.

Task 12:

Configure secure shell (SSH) on routers to enable secure management

Task 13: 

Design and calculate IP address for serial and Ethernet interfaces for each routers

Task 14: 

Backup all configuration files in secure place/ FTP Server.

Task 15: 

Determine support and training requirement after implementation.

Task 16: 

Obtain latest technical specification and pricing by contacting possible vendors.

Task 17: 

After completing the project, Create a Sign off sheet that indicate that you have successfully complete network documentation according to organisational standards

Task 18:

Upon completion of your project, you will be required to deliver a 20-minute presentation in class using Microsoft PowerPoint.  

Your trainer/assessor will act as role of client for this project. You will be assessed on your creativity while producing network architecture design for Nubex Technology Pty Ltd.   

Required Resources:

  • Packet Tracer 6.0.1
  • Microsoft Office suite

Submission Requirement:

Student need to provide the following:

  • Word Documents (Cover Task 1- Task 16)
  • Packet Tracer file including source code and Appropriate Screen Shoot
  • Presentation Slide ( at least 10 Slide)

You can follow the Report Format as below:

  • Introduction
  • Routers Details
  • Switches Details
  • Terminals Details
  • Physical Diagram (LAN/WAN) 
  • Network Diagram (LAN/WAN)
  • Design and Calculate IP Addresses
  • Implementation Security on Switch
  • Implementation Access Control List
  • Secure Shell (SSH) on Routers
  • Backup
  • Training and Support 
  • Conclusion
Show More

Answer :

Network Layout

network layout

Network Addressing

Network Address: / 8

LocationNumber of IP neededNumber of IP AllocatedNetwork AddressSubnet MaskBroadcast Address
London (LD)49551010.0.0.0255.
Sydney (SY)45051010.0.2.0255.
Singapore (SG)19025410.0.4.0255.
Tokyo (TK)9512610.0.5.0255.255.255.12810.0.5.127
Sacramento (SC)7712610.0.5.128255.255.255.12810.0.5.255
Berlin (BR)556210.0.6.0255.255.255.19210.0.6.63
Bombay (BB)273010.0.6.64255.255.255.22410.0.6.95

LocationNumber of IP neededNumber of IP AllocatedNetwork AddressSubnet MaskBroadcast Address

IP Addressing

DeviceInterface NameIP AddressSubnet MaskDefault Gateway
London (LD)Fa 0/
Sydney (SY)Fa 0/
Singapore (SG)Fa 0/
Tokyo (TK)Fa 0/
Sacramento (SC)Fa 0/
Berlin (BR)Fa 0/
Bombay (BB)Fa 0/

DeviceInterface NameIP AddressSubnet MaskDefault Gateway
London (LD)S 0/0/0200.200.200.9255.255.255.252
London (LD)S 0/0/1200.200.200.13255.255.255.252
Sydney (SY)S 0/0/0200.200.200.1255.255.255.252
Sydney (SY)S 0/0/1200.200.200.25255.255.255.252
Singapore (SG)S 0/0/0200.200.200.2255.255.255.252
Singapore (SG)S 0/0/1200.200.200.5255.255.255.252
Tokyo (TK)S 0/0/0200.200.200.17255.255.255.252
Tokyo (TK)S 0/0/1200.200.200.22255.255.255.252
Sacramento (SC)S 0/0/0200.200.200.18255.255.255.252
Sacramento (SC)S 0/0/1200.200.200.14255.255.255.252
Berlin (BR)S 0/0/0200.200.200.10255.255.255.252
Berlin (BR)S 0/0/1200.200.200.6255.255.255.252
Bombay (BB)S 0/0/0200.200.200.21255.255.255.252
Bombay (BB)S 0/0/1200.200.200.26255.255.255.252

Basic Configuration

basic configuration of network

Interface Configuration

Interface Configuration of network

DHCP Configuration

DHCP Configuration

RIP Configuration

Routing Table

Routing table of network


Ping from London PC1 to Sydney PC1

Ping from London PC1 to Sydney PC1