Subnetting with CIDR

- If you watched my episode about classical subnetting,…you recognize that the lords of the internet kind of…messed up when it came to breaking up all our IP address…network IDs into just Class A, Class B, and Class C.…We need a way that gives us a more granular control…over how we take one subnet and chop it up…into lots of little subnets.…And we do that through something known as,…Classless Inter-Domain Routing,…or better known as, CIDR.…Now CIDR has been around since around the mid 90s,…so this isn't anything new, but it is…a very powerful tool and a little bit complicated.…

Now if there was ever an episode where you're…going to be hitting that pause button it's going to be this one.…This is something you'll probably want to watch…two or three times, and pause, and calculate.…This is not an intuitive idea, but you can get it,…and it's very cool, and it's something that everybody uses.…Now, we've all seen an IP address.…So if we take a look at an IP address,…say one six zero dot 25 dot 208 one,…we recognize by now, that those dots don't really exist.…