Hey friends! Let me talk real quick about DHCP! Feel free to add anything you see fit. #network #communication #ipaddress #networking #tech #technology #cybersecurity #basics #fundamentals Now the extension number is specific to this network. There can be multiple of the same extension numbers, but what makes us sure that we are getting the correct information we are looking for is that we first accessed a unique phone number associated to the business.

I think of public IP's like a business' phone number and a private IP like the extension number. All public IP's are unique whereas one private IP could be the same as another private IP on separate networks. You can find your public IP by going to showmyip(.)com or whatismyip(.)com. Your router performs network address translaton to translate a private IP into the public IP and vice versa. To do so, you will need a public IP address.Ī public IP address is a single address assigned to your network by your internet service provider and allows devices within the network to communicate outside of it via the internet. No communication can happen outside the LAN using a private IP. This address allows the device to communicate to other devices within that same network. So what's the difference between this private IP that we see so often and the public IP?Ī private IP address is what is assigned to each device that is connected to a local area network. On the contrary, there is also a public IP address that we don't normally see. If you've run the commands ipconfig or ifconfig in your terminal, then you've come across a private IP address.

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