You are tasked to design a secure network for a small used car dealership. The dealership has six employees of which three are sales persons, two are finance persons, and one manager.

You are tasked to design a secure network for a small used car dealership. The dealership has six employees of which three are sales persons, two are finance persons, and one manager. They have a Web server with a site to advertise cars for sale, a File Server to host and house dealership documents, templates, customer files, and other related items, and an Extranet Web server to share files with business partners, such as banks who upload new loan application forms, etc to the Extranet server. They also have free open wireless access for customers to use while they are in the dealership. Based on your design the dealership has to determine requirements for a IT SEC contract.

Using a network diagramming tool of your choice, design and diagram a network that includes the following endpoints, along with what you decide are the required security/networking devices such as routers/firewalls, switches, etc. Make sure to include NAT IP addresses for all interfaces of the internal network and DMZs, etc. In your diagram, include your best and most reasonable approach to implementing a Network Monitoring System (NSM). For the NSM devices, such as HIDSs and NIDSs, document the type of connection (TAP, SPAN, or in-line), software of your choice, agents/manager, etc. The objective is to create a manageable and secure, but functional network design. Label all icons, IP addresses, and include short descriptions to identify the role of each icon.

External connections:

Public Internet, the ISP provided you with IP address of 1.2.3.4 as the external interface

Business-to-business (B-2-B) connection, the ISP provided you with an external IP address of 10.10.10.1

Endpoints:

Wireless Access Point

Two end user computers in the sales department

Two end user computers in the finance department

Manager computer

Servers:

Publicly-facing Web Server with E-mail services

Internally-facing File Server

Extranet Web server for B-2-B file sharing

Include your class title, name, date, and a title your on diagram.

At the bottom of the diagram, provide a short statement describing your justification for how you designed your NSM.

IF YOU NEED A DIAGRAMMING TOOL, CHECK OUT DIA at http://dia-installer.de/