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Please show work or no points will be awarded... Also when answering question 1,

ID: 3531379 • Letter: P

Question

Please show work or no points will be awarded... Also when answering question 1, be sure to provide a table listing the subnets you plan to use in addressing the various portions of the network. For each subnet, list the subnet ID, valid host range, subnet broadcast address, and subnet mask used either in dotted decimal notation or bit count format.

Here's the problem:

Mini case - Central University:

Suppose you are the network manager for Central University, a medium-sized university with 13,000 students. The university has 10 separate colleges (e.g., business, arts, journalism), 3 of which are relatively large (300 faculty and staff members, 2,000 students, and 3 buildings) and 7 of which are relatively small (200 faculty and staff, 1,000 students, and 1 building). In addition, there are another 2,000 staff members who work in various administration departments (e.g., library, maintenance, finance) spread over another 10 buildings. There are 4 residence halls that house a total of 2,000 students. Suppose the university has the 128.100.xxx.xxx address range on the internet:


1) how would you assign the IP addresses to the various subnets? (REMEMBER - be sure to provide a table listing the subnets you plan to use in addressing the various portions of the network. For each subnet, list the subnet ID, valid host range, subnet broadcast address, and subnet mask used either in dotted decimal notation or bit count format.)


2) how would you control the process by which IP addresses are assigned to individual computers.

You will have to make some assumptions to answer both questions, so be sure to state your assumption.

Explanation / Answer

The Internet is a vast source of information that is continuously updated and accessed via computers and other devices. For a device (also referred to as a host) to connect to the Internet, it is necessary that among other configurations, it must have an Internet Protocol (IP) address. TheIP addressis the computer's address on the Internet. A common comparison of an IP address is an individual's telephone number, which is an identifier for people to communicate with the individual. Up until the late 1980s, configuring a computer to connect to the Internet was a manual process. The protocol Bootstrap Protocol (BOOTP) was the first Transmission Control Protocol/Internet Protocol (TCP/IP) network configuration tool used to prevent the task of having to manually assign IP addresses by automating the process.

While the introduction of the BOOTP network protocol was a welcome innovation for network administrators tasked with managing large numbers of computers on a network, it was the first attempt and a new and improved TCP/IP network protocol soon followed. This protocol is called Dynamic Host Configuration Protocol (DHCP). DHCP was not designed as a replacement for BOOTP, but an extension of its functionality.

As its name indicates, DHCP provides dynamic IP address assignment. What this means is that instead of having to rely on a specific IP address, a computer will be assigned one that is available from a subnet or "pool" that is assigned to the network. DHCP also extends BOOTP functionality to provide IP addresses that expire. BOOTP indirectly uses a form of leasing that never expired, but the term wasn't actually used until the introduction of DHCP. When DHCP assigns an IP address, it actually leases the identifier to the host computer for a specific amount of time. The default lease is five days, but a network administrator should evaluate their own particular circumstances to determine an appropriate lease.

In basic terms, the DHCP lease process works as follows:

To set up DHCP, you basically need a DHCP-supported client (at least one) and router, and a DHCP server. The client is a computer or other device on a network that requires an IP address and or other network configuration information. The router functions as a forwarding (or routing) agent of IP address requests from the DHCP server. The DHCP server is key to the entire operation. It is responsible for allocating, leasing, reallocating, and renewing IP addresses. Windows and Linux both support DHCP software.