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Network Design Proposal

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Network Design Proposal Paper
By: David Bales
3/18/13

UMUC’s new network lab will consist of servers, hubs, routers, computers, an IDS (Snort), and Norton Firewall and Virus Scan software. The safety and security of the network is of the utmost importance. In surveying the site, a number of limiting factors were identified, most notably, the absence of locations for hub to serve as repeaters for locations in far corners of the building. It is for this reason I have decided to use Fiber Optic cable. The limitations of fiber are not as pronounced as Cat 5e. Signal loss will be minimized.
The network will have a /22 subnet with the following IPs serving each section: * 10.15.0.0 as the Network Identifier * 10.15.1.0 as the Instructional Network (INST) * The broadcast IP will be 10.15.1.255 * Available IPs will be 10.15.1.1 - 254 * 10.15.2.0 as the Administrative Network (ADM) * The broadcast IP will be 10.15.2.255 * Available IPs will be 10.15.2.1 - 254 * 10.15.3.0 as the Public Network (PUB) * The Broadcast IP will be 10.15.3.255 * Available IPs will be 10.15.3.1 - 254
This division will allow for substantial growth of the network while also providing a separate network for each of the three sections identified. Each subnet will have a maximum of 253 IP addresses, which is more than enough for each section.
The instructional and administrative networks will use assigned IP addresses to keep all traffic segmented. The public network will use DHCP beginning with 10.15.3.2 through 10.15.3.254.
This network is a Star Network as all computers will have the capability to “talk” to one another. By avoiding a bus or ring topology, we keep the network available in the event one machine is inoperable. Only specified IPs will be given access to the Administrative network to prevent students from

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