Packet Tracer – Identify MAC and IP Addresses

Last Updated on February 17, 2018 by Admin Packet Tracer – Identify MAC and IP Addresses

Packet Tracer – Identify MAC and IP Addresses (Answer Version – Optional Packet Tracer)

Answer Note: Red font color or gray highlights indicate text that appears in the Answer copy only. Optional activities are designed to enhance understanding and/or to provide additional practice.

Topology Packet Tracer – Identify MAC and IP Addresses Packet Tracer – Identify MAC and IP Addresses


Part 1: Gather PDU Information

Part 2: Reflection Questions


This activity is optimized for viewing PDUs. The devices are already configured. You will gather PDU information in simulation mode and answer a series of questions about the data you collect.

Part 1: Gather PDU Information

Note: Review the Reflection Questions in Part 2 before proceeding with Part 1. It will give you an idea of the types of information you will need to gather.

Step 1: Gather PDU information as a packet travels from to

  1. Click and open the Command Prompt.
  2. Enter the ping command.
  3. Switch to simulation mode and repeat the ping command. A PDU appears next to
  4. Click the PDU and note the following information from the Outbound PDU Layer tab:
    • Destination MAC Address: 00D0:BA8E:741A
    • Source MAC Address: 000C:85CC:1DA7
    • Source IP Address:
    • Destination IP Address:
    • At Device: Computer
  5. Click Capture / Forward to move the PDU to the next device. Gather the same information from Step 1d. Repeat this process until the PDU reaches its destination. Record the PDU information you gathered into a spreadsheet using a format like the table shown below:

Example Spreadsheet Format

Test At Device Dest. MAC Src MAC Src IPv4 Dest IPv4
Ping from to 00D0:BA8E:741A 000C:85CC:1DA7
Switch1 00D0:BA8E:741A 000C:85CC:1DA7
Router 0060:4706:572B 00D0:588C:2401
Switch0 0060:4706:572B 00D0:588C:2401
Access Point 0060:4706:572B 00D0:588C:2401

Step 2 Gather additional PDU information from other pings.

Repeat the process in Step 1 and gather the information for the following tests:

  • Ping from
  • Ping from
  • Ping from
  • Ping from
  • Ping from

Part 2: Reflection Questions

Answer the following questions regarding the captured data:

  1. Were there different types of wires used to connect devices? Yes, copper and fiber
  2. Did the wires change the handling of the PDU in any way? No
  3. Did the Hub lose any of the information given to it? No
  4. What does the Hub do with MAC addresses and IP addresses? Nothing
  5. Did the wireless Access Point do anything with the information given to it? Yes. It repackaged it as wireless 802.11
  6. Was any MAC or IP address lost during the wireless transfer? No
  7. What was the highest OSI layer that the Hub and Access Point used? Layer 1
  8. Did the Hub or Access Point ever replicate a PDU that was rejected with a red “X”? Yes
  9. When examining the PDU Details tab, which MAC address appeared first, the source or the destination? Destination
  10. Why would the MAC addresses appear in this order? A switch can begin forwarding a frame to a known MAC address more quickly if the destination is listed first
  11. Was there a pattern to the MAC addressing in the simulation? No
  12. Did the switches ever replicate a PDU that was rejected with a red “X”? No
  13. Every time that the PDU was sent between the 10 network and the 172 network, there was a point where the MAC addresses suddenly changed. Where did that occur? It occurred at the Router
  14. Which device uses MAC addresses starting with 00D0? The Router
  15. To what devices did the other MAC addresses belong? To the sender and receiver
  16. Did the sending and receiving IPv4 addresses switch in any of the PDUs? No
  17. If you follow the reply to a ping, sometimes called a pong, do the sending and receiving IPv4 addresses switch? Yes
  18. What is the pattern to the IPv4 addressing in this simulation? Each port of a router requires a set of non-overlapping addresses
  19. Why do different IP networks need to be assigned to different ports of a router? The function of a router is to inter-connect different IP networks.
  20. If this simulation was configured with IPv6 instead of IPv4, what would be different? The IPv4 addresses would be replaced with IPv6 addresses, but everything else would be the same.

Suggested Scoring Rubric

There are 20 questions worth 5 points each for a possible score of 100.