Networking 101

Copyright Priscilla Oppenheimer

Lab 9 Configuring DHCP

Scenario

You are a senior network administrator who supports many branch offices for a large company. You have decided to implement DHCP. Although DHCP is often configured on a Windows or Linux server, you don't have a budget to buy server hardware, so you have decided to make each of the routers act as a DHCP server. Each 2600 and 1700 router will act as a server for the Windows and Linux clients on its Ethernet network.

Designing an Addressing Scheme

1. What is the network number for your relevant Ethernet network? _______________________________
2. How many hosts do you want to allow per network? __________________________________
3. What subnet mask should you use to accommodate that number of hosts?
   1. Subnet mask in slash notation ________________________________________________
   2. Subnet mask in decimal _____________________________________________________
4. Which DNS server(s) will you tell your clients about? _________________________________
5. What default gateway will your clients use? (It should be your router's Ethernet address). ______________________________________________

Configuring DHCP

1. Power on the workstations, routers, switches, and firewalls.
2. To configure the routers, start a HyperTerminal session.
3. Type enable (followed by Enter). Type the enable password, provided by the instructor.
4. Type configure terminal which means you are configuring the device from a terminal. (Your PC acts as a terminal.)
5. Type ip dhcp pool followed by the name of your addressing pool. (You can use any name.) Press Enter.
6. Now type a question mark to figure out how to configure the rest of the parameters (network, mask, DNS servers, and default router) and complete the configuration.
7. Configure the workstations for the new IP addressing information.
   1. On Windows, use the Network Connections Control Panel.
   2. On Linux, use yast.
   3. Configure the workstations to use DHCP (to get their address automatically).
   4. On windows, use the ipconfig /release and ipconfig /renew commands to tell the computer to get a DHCP address.
8. Test the new addressing method using Ping.

Reflection

What were the work goals of this project? (Please write this as if you were writing a work status report. In other words, write the project goals, not the learning objectives.)

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What problems did you encounter?

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What concerns do you have for the future for this network? Assume that you and your co-workers will now have the job of operating and monitoring this new "real-life" network. Based on your experiences setting it up and any problems encountered, what will you be keeping an eye on? What problems may occur?

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