Student Name: ______
Chabot College
Cisco Networking Academy I
Directions: Complete the exercises below and carefully print your answers on this sheet.
Prompts requiring answers are printed in italic.
Step One: Background
Write a brief description of the function of each of the following layers of the OSI model.
Refer to Chapter 2 of the curriculum as needed.
Layer 1. Physical:
Layer 2. Data Link:
Layer 3. Network:
Step Two - - - Layer 1 - - - (Physical)
Examine the physical connection from your curriculum PC to the network (Layer 1).
Access will be difficult if your PC is located in the middle of a table row; in that event, examine a PC located at the end of the row.
4. What kind of network media (cabling) is connected to the computer?
Step Three - - - Layer 2 - - - (Data Link)
Examine your curriculum PC's Network Interface Card (NIC) and MAC address (Layer 2).
Your computer’s operating system can give you information about your NIC. When a Windows 95/98 computer has been set up for networking, a utility program called winipcfg.exe is installed in the Windows directory. Winipcfg.exe can give you useful information about your network configuration.
Run winipcfg by clicking the START menu, selecting RUN, and typing winipcfg in the run box (it may already be there). Click OK.
A window titled “IP Configuration” appears. Inside the window, information for a specific ethernet adapter (network interface card, NIC) is displayed. If your computer has more than one adapter, you can use a drop menu to select among multiple network interfaces.
5. According to winipcfg, what brand and model of ethernet adapter is installed in your computer?
6. What is the MAC, or adapter, address of your computer’s NIC? (write the numbers, letters, & dashes)
Step Four - - - Layer 3 - - - (Network)
Examine your Layer 3 address configuration.
Since your computer is configured to use the Internet, the TCP/IP suite of protocols is installed. You can view your TCP/IP setup by using winipcfg.
7. What is your computer’s IP address? ______(write the numbers and dots)
8. List your computer’s Subnet Mask: ______(write the numbers and dots)
9. What do you think the word “subnet” means?
10. What is your computer's Default Gateway address? ______
Close this window and return to your desktop.
11. Talk to at least three of your classmates and learn the IP address of their curriculum PCs.
List them below:
You
Classmate 1
Classmate 2
Classmate 3
12. Compare the four addresses. Which part is the same? Which part differs?
Look at the subnet mask for your PC. Notice anything?
Step Five: Network Control Panel
It will not be possible to complete this step at your curriculum PC. Instead, your instructor will direct you to use a lab PC.
From the START menu, select SETTINGS | CONTROL PANEL. Then double-click the NETWORK control panel. For Windows machines, this control panel leads to the heart of your computer’s network configuration and interface. Look at these settings, but for now, don’t change them.
Configuration Tab. Windows displays the "Configuration" tab by default. Here you should see entries for Network Adapters, including your network interface card (NIC) and perhaps a Dial Up Adapter. Also note that other network components are listed here. Client services, such as Client for Microsoft Networks are included in this display, as are all installed network protocols.
Note also that the associations or "bindings" between adapters and protocols are shown as entries that list a protocol followed by an arrow that points to an adapter name.
(e.g. TCP/IP -> 3Com EtherLink XL 10 Mb Ethernet Adapter).
With Windows 95/98, multiple network protocols can be “bound” to a single NIC, so there may be more than one entry for a NIC or protocol.
13. List all network components installed on your lab PC, including clients, network adapters, and protocols:
Identification Tab. Click on the "Identification" Tab in the "Network" window. Here you should see an entries identifying the computer and its workgroup, if any.
14. List the Computer Name of your lab PC:
Computer nameTCP/IP Properties. First, return to the Network Configuration Tab by clicking on it. Then Click to select the network component labeled something like: TCP/IP -> Ethernet Adapter. (On the lab PCs, it is labeled TCP/IP -> Intel 8255x-based PCI Ethernet Adapter ).
Then click the "Properties" button in the middle right section of the window.
A window titled “TCP/IP Properties” appears, defaulted to the “IP Address” tab.
This window is used to set all key properties associated with the TCP/IP protocol.
Explore the configuration by clicking on these tabs at the top of the window:
· IP Address
· Gateway
· DNS Configuration
· Bindings (services bound to the selected TCP/IP -> adapter combination)
15. In the table below, record the values for the following properties of your lab PC:
Property / Value (s)IP Address
Subnet Mask
Gateway Address
DNS Server Address
Changing TCP/IP Properties. In this step, you will change the IP address of your lab PC. (this change is OK)
At your lab PC, your instructor will have posted a sign with two usable test IP addresses. You may use either of these for your PC, and your PC should already be set to one of them. Use no other IP addresses!
In the TCP/IP Properties window shown above, click the IP Address tab. Note which test address is now assigned to your PC, and then change it by typing the other test address into the IP Address field. You can move from field to field with the mouse, but it is easiest to type the entire address, including the decimal “dots”, which will move you from field to field.
After you’ve typed in the new IP address, Click “OK” to accept the change to TCP/IP properties, and the “OK” again to close the Network Control Panel.
16. What does Windows tell you at this point? Why do you think this step is necessary?
Follow the instructions given by Windows - restart. When you restart, if you see a network login dialog box, just click “Cancel” – Do not try to login.
A test. Now let’s see if your change took effect:
Run winipcfg by clicking the START menu, selecting RUN, and typing winipcfg in the run box (it may already be there). Click OK. From the drop-down list of network adapters, select the Intel 82557-based Fast Ethernet Adapter. Examine the IP address; is it the one you assigned? If so, your configuration change worked! If not, try to change the address again, reviewing the above steps carefully.
Another test. Now let’s see if your lab PCs TCP/IP configuration will allow it to communicate over the internet:
You will use a network application program called PING to request a response from a computer on the net. Select START | PROGRAMS | MSDOS PROMPT.
A window will open with a prompt that says: C:\WINDOWS>
At this prompt, type ping www.yahoo.com and then press ENTER.
Your computer’s response to this command will show whether you’ve reached yahoo’s computer over the net.
17. Did you reach yahoo's computer?
18. List the first three lines of your computer’s response to the ping command:
Now close the MS-DOS Prompt window by clicking its close box at top right.
You will be returned to the desktop.
You’ve successfully assigned an IP address to a PC!
END | THREE-HOLE PUNCH | STAPLE | SUBMIT
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