Secure Multinational IT Company Network System Design and Implementation

Scenario Description: Secure Multinational IT Company Network:

CyberNet Ltd is a prominent IT company headquartered in New York, USA, with branch offices in major cities including California, Florida, and an international branch in Canada. The company operates multiple sites and server farms at each location, managed exclusively by the IT department, and anticipates doubling its workforce in the next three years, requiring the design and implementation of a scalable, reliable, and secure enterprise network using simulation tools like Cisco Packet Tracer for thorough configuration and testing.

Assessment Criteria:

1. Business Scenario Analysis: Conduct a thorough analysis of the given business scenario to create a reliable, scalable, and secure network design. The proposed network should emphasize scalability, reliability, manageability, and security to meet the company's current and future needs.
2. Addressing Scheme Design: Develop an appropriate IP addressing scheme for the enterprise network using the provided IPv4 network address to ensure efficient use of IP space and simplified management.
3. Network Redundancy Protocols: Select and implement relevant protocols to ensure network redundancy, promoting high availability and fault tolerance throughout the enterprise network.
4. Security Threat Evaluation and Solutions: Assess potential security threats to the network and propose practical, effective solutions to enhance the network's security. These should address both internal and external risks, safeguarding the company’s data and assets.
5. Secure Internet and Communication Design: Design a network infrastructure that provides secure Internet access for all users. Implement appropriate VPN solutions to ensure secure communication between remote users and the HQ, as well as between HQ and branch offices.
6. Routing Protocol Selection: Identify and recommend the most suitable routing protocols for the proposed network to optimize performance, ensuring fast convergence, load balancing, and scalability.
7. Network Management Methods: Choose effective network management techniques to monitor, control, and maintain the network efficiently, including proactive fault detection and performance management.
8. Implementation and Testing: Utilize a suitable network simulation tool, such as Cisco Packet Tracer, to implement and thoroughly test the network design. Ensure that all components meet performance, security, and reliability criteria.

Network Topology Created
The network topology below satisfy the user requirements above and everything is verified, tested and working fine.