Lab 3 2 Exploring Broadcast Domains - lizzy9596/my-tech-journal GitHub Wiki

I. Analyze Traffic to a Remote Network (different LAN)

1. Open a Command Prompt (windows) or Terminal (Linux)
2. Open wireshark and start a capture
3. Back in the Command Prompt/Terminal- ping the Google Public DNS server (8.8.8.8)
4. Stop Capture

Deliverable 1: Analyze the ICMP Response from Google:

Answer: What is the source MAC address? What is the destination MAC address? (Hint: Data Link Layer Header)

Answer: Does the source MAC address look familiar from prior labs? Do you think it is the Google Server's MAC address?

II. Examine both sides of a ping

Find a partner in class and get their IP address. From your workstation, ping your partner's IP and make sure you get a response On your workstation, start a wireshark capture, ping your partner's IP, and stop the capture On your workstation, analyze the capture

Deliverable 2: What are the source and destination MACs in the ping reply? What is your partner's MAC address?

**Deliverable 3: ** Does the MAC address match the address from you traffic capture? If not - what do you think happened?

III: Capture both sides of the ping request

Start a Wireshark capture on both PCs and let it run From a command prompt on your workstation, ping your partner's IP address Stop the captures on both Workstations Find and compare the ICMP traffic on both devices

Deliverable 4: On your workstation, what is the source and destination MACs from the pings? On your partner's workstation, what is the source and destination MACs from the pings?

Deliverable 5:
Why do you think they are different?