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→Public IPs
Also note if you look inside a VM: the public IP isn't actually configured as the IP on that interface. The IP is assigned to your VPC, and incoming connections to it are port-forwarded to the VM which you assigned the IP to. This is very different from what you saw in your previous courses.
[[File:AWSIPs.png|800px|border|center]] You may have configured port forwarding on your router at home at some point to enable some game or service which requires an open port on your public IP address. This is the same idea. On AWS this port forwarding is done via the Internet Gateway.
* Default dynamic public IP