Frederick MD UMUC Network Proposal

Topics: IP address, Active Directory, Subnetwork Pages: 7 (1166 words) Published: December 1, 2014

UMUC Frederick MD Network Proposal

The network IP addressing scheme for the Frederick MD building should be designed to ease network management. A well thought out network subnet design enables administrators to quickly locate computers by IP address by building floor and room, and whether the computer is a server, a student computer, staff computer or instructor’s computer. A proper subnet design will also minimize broadcast traffic that decreases network performance, by reducing the total number of computers allowed in each broadcast domain. A proper subnet design will also provide for efficient use of IP addresses by including only the number of IP addresses in each subnet necessary to support current computers plus a few additional IP addresses for immediate expansion when required. To differentiate subnets by IP address, student subnets start with a “1” in the third octet, staff subnets start with a “2” in the third octet where “10” in the second and third digits designates the location to be floor 1, “12” designates the location to be floors 1 and 2, “10” designates the location to be floor 1, “20” designates the location to be floor 2, and a second digit of “4” designates office staff and a second digit of “5” designates Admissions staff. The broadcast and network numbers have been removed from the IP address ranges below. UMUC IP Subnets

Computer Lab 1 student subnet and range – First Floor – 30/27 Computer Lab 2 student subnet and range – First Floor – – 63/27 Computer Lab 3 student subnet and range – First Floor – Computer Lab 4 student subnet and range – First Floor – Computer Lab 5 student subnet and range – First Floor – 10.1515.112.132-162/27 Computer Lab Instructors subnet and range – (second floor assigned host addresses 10-15) Student Computer Lab subnet and range – Library Student computer subnet and range - Library Staff computer subnet and range -

Lecture Classroom Instructors subnet and range - Office Staff computer subnet and range –
Admissions Office Staff computer subnet and range- Wireless computer subnet and range – (ACLs applied to the VLAN for security)

CAT6 UTP will be installed in a star topology because a star topology is less expensive to manage and is lower cost than a ring (using Token Ring Protocol) and bus (using RG6 and RG58 coax cable). The Admissions Office and Classroom directly above the Admissions office is over 300 feet (the Ethernet limit) from the server room and a diagonal pull through the ceiling (258 feet plus a 30 foot drop best case) could be complicated by power line interference and possible obstructions), so these two rooms will require fiber optic cabling rather than CAT 6 UTP. Wireless media access will be protected using WPA2 security with AES 256 encryption and a pre-shared key to prevent eaves dropping. The network will use the Hewlett Packard Procurve switches because of their high performance, low cost relative to other brands (such as Cisco) and their lifetime warranty. The Hewlett Packard E5406zl switches are can support up to 144 gigabit network connections (10/100/1000baseT Ethernet) and one will be installed on each floor in their repective Server Rooms. The switches will be configured with a VLAN (Virtual Local Area Networks) for each subnet. The network access will be secured using Active Directory single sign-on, and IP addresses centrally managed using DHCP (with DHCP relay enabled on the switches). An HP Procurve E3500yl 24 port switch will be installed as the network core to which the HP 5406zl switches on each floor will be connected. All switches will be configured to use the OSPF (Open Shortest Path First) protocol to facilitate routing traffic...

References: Cisco, 2010, Cisco ASA 5505 Data Sheet,
Dell, 2010, PowerEdge T310 Tower Server,
Hewlett Packard, 2011, HP Officejet Pro 8500 Premier All-in-One Printer - A909n
ioSafe R4: Product Specification,
Medford, 2000, Network Design Best Practices,
Wilson, 2003, Network Security: Best Practices,
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