Let's say you're on your home network. If you go to your computer's network settings, you see that your computer has a MAC address 00:11:22:33:44:55 and an IP address 192.168.1.25.

If you visit https://www.whatismyip.com/ in the browser, the webpage shows that your computer has an IP address of 128.122.72.33.

My roommate checks their computer's network settings, which show as MAC address of 22:33:44:aa:bb:cc and an IP address of 192.168.1.26.

Both you and your roommate connect to the same home WiFi router, which is connected to the Internet Service Provider's gateway.

1. If I visit https://www.google.com, Google knows my IP address as:

2. If my roommate visits https://www.google.com, Google knows their IP address as:

3. If I visit https://www.google.com, Google knows my MAC address as:

4. If my roommate visits https://www.google.com, Google knows their MAC address as: