CCNA Lab 3.3.3 Determine the MAC Address of a Host

Sonya Leoni
06491/2008

Lab 3.3.3 Determine the MAC Address of a Host
Objective  

•  Determine the MAC address of a Windows XP computer on an Ethernet network using the ipconfig /all command. 

•  Access to the Run command.

Background/Preparation  
Every computer on an Ethernet local network has a Media Access Control (MAC)
address that is burned into the Network Interface Card (NIC). Computer MAC addresses
are usually displayed as 6 sets of two hexadecimal numbers separated by dashes or
colons. (example: 15-EF-A3-45-9B-57). The ipconfig /all command displays the
computer MAC address. You may work individually or in teams.
The following resources are required:

•  Windows XP workstation with at least one Ethernet network interface card (NIC)

Step 1: Open a Windows command prompt window 
a. From the Windows XP desktop, click Start then Run. 
b. Type cmd in the Run dialogue box then click OK.
c. A Windows command prompt window opens. 

Step 2: Use the ipconfig /all command 
a. Enter the ipconfig /all commandat the command prompt.

b. Press Enter. (Typical results are shown in the following figure, but your computer will
display different information.)


Step 3: Locate the MAC (physical) address(es) in the output from the ipconfig /all
command
a. Use the table below to fill in the description of the Ethernet adapter and the Physical
(MAC) Address:

Description                                                                Physical Address
VIA Rhine II Fast Ethernet Adaptor                          00-50-2C-A5-F573