Design a secure network infrastructure.
• Plan a deployment of software and/or hardware, including implementation and testing considerations.

Part 1
Use Microsoft Visio or an open-source alternative to:
• Create a network infrastructure diagram, incorporating the following devices needed for a secure corporate network, placed where they will work, and citing specific, credible sources that support the design. Note: A web search will provide multiple examples of network infrastructure diagrams.
• Web server.
• FTP server.
• VPN server.
• Authentication server.
• Anti-virus server (client-based and server-based).
• Edge firewall.
• Firewall.
• Vulnerability scanner.
• Intrusion detection system (IDS).
• Web proxy.
• Edge router.
• Core router.
• Switch.
• Distribution router.
Note: All client- and server-based devices work where a client is installed on a workstation, which has bi-directional communication with a corresponding server.
Part 2
Write a 6 page paper in which you:
• Determine the specific devices you will use in the network, including the following information for each device:
• Make or vendor’s name (for example, Microsoft, Redhat, Cisco, Juniper, Netgear, 3Com).
• Model (for example, Windows 7, ASA 5500, Cisco 3500, Squid).
• IP address assigned to all devices.
• Determine the basic configuration of each network device, citing specific, credible sources that support the configuration.
• Research each of the devices you chose and provide a basic configuration you would use in your network.
• Use IP addresses to describe your configuration.
• Identify the operating system.
• Highlight at least five security features and the administrative controls incorporated into each device, including devices in the network diagram.
• Explain the impact that each of your configurations has on the security of the entire network.
• Explain the elements that must be addressed for planning and testing a network, citing specific, credible sources that support your assertions and conclusions.
• Organizational requirements and expectations.
• Budget.
• Modularity for security and testing.
• Naming conventions that facilitate layering and growth.
• Determination of required network speed and data capacity.
• Vendor support.
• Determination of risk and redundancy.
• Uptime requirements.
• Continuous data monitoring for fault, failure, or security-induced changes.
• Load balancing.
• Testing for latency.
• Bandwidth.
• Throughput.
• Specific software and tools.
• Support your main points, assertions, arguments, or conclusions with at least four specific and credible academic sources synthesized into a coherent analysis of the evidence.
• Cite each source listed on your source page at least one time within your assignment.
• For help with research, writing, and citation, access the library or review library guides.
• Write clearly and concisely in a manner that is well-organized, grammatically correct, and free of spelling, typographical, formatting, and/or punctuation errors.
Part 3
Use Microsoft Visio or an open-source alternative to:
• Update your initial diagram to create a final network diagram, incorporating at least four-fifths of the devices needed for a secure corporate network and citing specific, credible sources that support the design. Be sure to include vendor information, model information, and IP addresses. In addition, ensure that:
• VPN sessions (from a laptop) are only allowed to access the desktops in the IT department by IT department employees.
• All VPN connections from the Internet cloud into the corporate network terminate at the VPN server.
• Users from Engineering and Finance and Accounting cannot communicate.
• Vulnerability scans occur daily, with all desktops scanned at least once per day