From the course: Introduction to Network Routing
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Private and public addressing
From the course: Introduction to Network Routing
Private and public addressing
- [Instructor] IPv4 private addressing was created to save the IP addresses that we had handed out to other universities, and governments, and businesses all over the world. We were running out of IP addresses, and so we had to come up with a solution. And they came up with a solution that was called private IP addressing. They took three different subnets and said these subnets can only be routable internal to a network, they cannot be routed onto the internet. So that means I can use the 10.0.0.0 network in my home or my business, and you can use it too, because it's not out there on the internet, so it's technically not being duplicated. The firewall does network address translation, so that way, no one knows that my IP address is the same as yours. These three subnets include the 10 network, anything that comes after 10 is going to be a private IP address. Then there's the class B, or /16 CIDR network, which is…
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