Network Security Practical Assessment

Assignment Overview 

Task 1 (20 marks)

Objective:

To design and implement a secured network infrastructure on Packet Tracer using the base packet tracer file provided (without any configuration, only physical topology provided) as per the scenario and requirements listed below. Begin with a network design of IP addresses as per the host requirement. You may select an appropriate private IP block and may use FLSM/VLSM. Include justifications of your choice in the report.

Scenario

You are the Security Consultant of ‘MNM Company’ that offers educational services to its clients. They have three offices in Singapore:

• HQ

• AMK Branch

• Tuas Branch

Task 2 (10 marks)

Write a detailed report covering:

• Considerations for the network IP address and FLSM/VLSM design.

• Tabulate all IP addresses per location including the mask chosen.

Summary of Assessment Requirements and Approach

Assessment Overview

The assessment is divided into two main tasks, focusing on practical network security implementation and reporting.

Task 1 (20 Marks) Network Design and Implementation

Objective:
To design and implement a secured network infrastructure on Cisco Packet Tracer using a provided base file that contains only the physical topology. The student is required to:

• Design the IP addressing scheme based on host requirements for each office.

• Select an appropriate private IP block and apply FLSM/VLSM where applicable.

• Implement security measures for routers, switches, servers, and connections across three offices:

  • HQ

  • AMK Branch

  • Tuas Branch

Key Points to Cover:

• Router and device hostname and enable password configuration.

• SSH access and AAA authentication through a Radius server.

• NTP server synchronization.

• OSPF routing with type 2 authentication.

• Site-to-site IPSec VPN between HQ and Tuas.

• Port security on all switches and secure server access using ACLs.

• Internet connectivity through HQ ISP router.

• Testing connectivity for at least one PC per network.

Task 2 (10 Marks) Detailed Reporting

Objective:

To produce a detailed report documenting the design and implementation process.

Key Points to Cover:

• Explain considerations for IP addressing and the choice of FLSM or VLSM.

• Tabulate all IP addresses, subnets, and masks for each location.

• Include justifications for design decisions.

Assessment Approach by the Academic Mentor

The assessment was approached systematically to guide the student through a step-by-step process, ensuring all key learning objectives were met.

Step 1: Requirement Analysis

• Reviewed the scenario for MNM Company and the number of offices.

• Identified staff counts, device types (desktops/laptops), and server requirements.

• Highlighted security and connectivity requirements (SSH, AAA, VPN, port security).

Step 2: IP Address Design

• Discussed the selection of a private IP block suitable for all offices.

• Applied FLSM/VLSM to allocate subnets efficiently based on host requirements.

• Explained the importance of subnetting for network scalability and security.

Step 3: Device Configuration

• Configured router and switch hostnames and enable passwords.

• Implemented SSH and AAA authentication through the Radius server.

• Enabled port security and disabled unused switch ports.

• Configured NTP synchronization across all devices.

Step 4: Routing and Connectivity

• Set up OSPF routing with type 2 authentication and defined Hello/Dead intervals.

• Configured IPSec VPN between HQ and Tuas offices to ensure secure site-to-site connectivity.

• Established default routes for Internet access via the HQ ISP router.

• Tested connectivity using PCs to ensure proper network communication.

Step 5: Server Security and ACLs

• Restricted access to Radius server and other servers using ACLs.

• Configured secure access for Internet and intranet users.

Step 6: Reporting and Documentation

• Documented IP addressing scheme and subnet masks for each office.

• Justified design decisions for network configuration, routing, and security measures.

• Tabulated IP addresses for clarity and easy reference.

Final Outcome

The student successfully designed and implemented a fully secured network infrastructure across the three MNM Company offices.

Key Learning Outcomes Achieved:

• Understanding and applying IP addressing with FLSM/VLSM.

• Configuring router and switch security (SSH, AAA, passwords).

• Implementing NTP synchronization and OSPF routing.

• Configuring IPSec VPN for secure inter-office connectivity.

• Applying port security and ACLs to protect network devices and servers.

• Documenting and reporting network design and security configurations professionally.

Access Your Assignment Solution Learn Without Risk!

Looking for guidance on your assignments? You can download our sample solution to see a professionally prepared reference and understand how to approach your work step by step. Please note, this sample is for reference purposes only submitting it as your own work is considered plagiarism and can have serious academic consequences.

If you want a 100% original, plagiarism-free assignment, you can also order a custom-written solution from our team of professional academic writers. Each assignment is crafted to meet your specific requirements, ensuring you learn effectively while staying safe from academic integrity issues.

Benefits of Ordering a Fresh Assignment:

• Tailored to your exact assessment instructions

• Fully plagiarism-free and original

• Delivered on time with proper formatting and references

• Helps you understand the concepts while saving time

Take Action Now:

Download Sample Solution     Order Fresh Assignment