Project 2-1
In this project, you define a range of network and host addresses that can be used on a sub-netted Class B network. The network number assigned to you is 191.15.0.0.You define a network addressing system that supports 24 networks by subnetting the given address.This project uses the IP Subnet Calculator on the CD that accompanies this book.
To install the IP Subnet Calculator:
1. Insert the CD that accompanies this book in your CD-ROM drive.
2. Open Windows Explorer, double-click the CD-ROM icon, scroll down to the Tools\SubnetCalculatorDemofolder, click it to open it, and then double-click the IPCALC321.EXE file.
3. Click the WinZip Setup button.
4. Click Next in the Welcome! screen.
5. Click the I Agree button in the WildPackets IP Subnet Calculator 3.2.1 Installation window.
6. Click Next to accept the default installation path (unless your instructor gives you an alternate path).
7. Click Next to install the program.
8. Click Next after viewing the installation readme text.
9. Click Finish to complete the installation.
To use the IP Subnet Calculator:
1. Open the IP Subnet Calculator (click Start, point to Programs, and then click WildPackets IP Subnet Calculator).
2. Enter the address 191.15.0.0 in the IP Address field.
3. Click the Subnet Info tab.
4. Click the down arrow next to the Max Subnets field.
5. Your network must support 24 subnets. Choose the number 30 from the drop-down list. Note the Subnet Mask field automatically changes to identify the net-work mask required to support 30 subnets.
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6. Click the Subnets/Hosts tab to view the list of possible subnetworks and the host ID range.
7. When you are finished with this project, close the IP Subnet Calculator program.
Project 2-2
You will need a computer with Internet access and a Web browser to complete this project.
To visit the Joe Rudich “Practical Subnet Design” article:
1. Open your Web browser (click Start, point to Programs, and click Internet Explorer; or see your instructor if you use a different browser).
2. Enter the following URL in the Address text box:
http://www.ntsystems.com/db_area/archive/1999/9906/306fe1.shtml 3. Read the article, which provides more information and additional examples of IP
subnetting.
4. Pay special attention to Table 2, which provides a great “cheat sheet” to help you understand the impact of selecting subnet mask values from 192 to 255 in any given octet for Class A, B, and C addresses.
5. Close the Web browser, unless you plan to proceed immediately to the next project.
Project 2-3
You will need a computer with Internet access and a Web browser to complete this project.You will access the 3Com Web site to look for information about IP addressing.
Feel free to spend some time browsing this Web site after you complete the steps.
To find IP addressing information at the 3Com Web site:
Access and read the 3Com white paper “Understanding IP Addressing” to further cement the information covered in this chapter of the book.
1. Open your Web browser (click Start, point to Programs, and click Internet Explorer; or see your instructor if you use a different browser).
2. Enter the following URL in the Address text box:
http://www.3com.com
3. Type Understanding IP Addressing in the Search field, and then click the Search button.
4. Click the 3Com Press Box Technical Papers hyperlink.The Technical Papers list appears.
5. Scroll down the list to locate the document titled “Understanding IP Addressing:
Everything You Ever Wanted To Know,” dated April 26, 1996, by Chuck Semeria.
Click the hyperlink Understanding IP Addressing to access this document and
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Project 2-4
You will need a computer with Internet access and a Web browser to complete this project. You access the IETF Web site to look for information about RFC 1878. Feel free to spend some time browsing this Web site after you complete the steps.
To examine RFC 1878:
1. Open your Web browser (click Start, point to Programs, and click Internet Explorer; or see your instructor if you use a different browser).
2. Enter the following URL in the Address text box:
http://www.ietf.org
3. Click the RFC Pages hyperlink.
4. Enter 1878 in the IETF repository retrieval RFC number field, and then click go.
Identify the Class B network address that supports 32 subnets for IP address 191.15.0.0. How many bits are defined for the subnet portion of the address?
5. Close the Web browser.
Project 2-5
To design a subnet structure:
For a Class B network address, you are asked to design a subnet structure to meet stated requirements. Feel free to use pencil and paper, or the IP Subnet Calculator introduced in Hands-on Project 2-1, to solve this problem.
1. For the Class B network address 172.16.0.0, XYZ Corporation wants 60 subnets, each with a minimum of 1000 host addresses.
2. Is this request mathematically possible? If not, explain why. If so, answer the fol-lowing additional questions:
a. Calculate the required subnet mask that meets these specifications. What subnet mask is required?
b. What is the maximum number of subnets that this design allows?
c. How many workstations will each subnet accommodate?
d. What is the network address, the range of host addresses, and the broadcast address for the first usable subnet that this design permits?
Project 2-6
To design a supernet structure:
You are asked to design a supernet structure to meet stated requirements for four con-tiguous Class C network addresses, 192.168.8.0 through 192.168.11.255. Feel free to use pencil and paper, or the IP Subnet Calculator introduced in Hands-on Project 2-1, to solve this problem.
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