Your network design need 4 subnets:

• Subnet A (Sydney): It requires 63 IP addresses (60 for PCs and 2 for servers (Windows, Fax) and 1 for router interface)
• Subnet B (Melbourne): It requires 53 Ip addresses (50 for PCs and 2 for servers (DNS, Database) and 1 for router interface)
• Subnet C (Adelaide): It requires 43 Ip addresses (40 for PCs and 2 for servers (Linux, Application)
• Subnet D (Between two routers): It requires just 2 Ip addresses

You need to use routers and switches to make connection among devices and also between networks. Each office has its own applications, but some applications require inter-department data transfer. All workstations need internet access, company intranet access and also access to wireless network. You need to come with design report and send it to your technical manager.

Report: The report must contain the following sections:

1. Introduction: Critical analysis of networking requirements
2. Local Area Network (LAN): Design and description of Local Area Network for all subnets which must include:
   • Network topology: Discuss the reasons for choosing the particular network topology.

o LAN design connections to the servers, connection to other subnets and also the internet.

2. • IP addresses: Find all network and host addresses including subnet masks according to the requirements with using the private address with your choice.
3. Hardware: Provide a complete description of all interconnecting devices (switches, routers, hubs and access points) and wiring used to build the network. Provide justification for your choice.
4. Conclusion: Comprehensive summary of the work done and recommendations.