Network Fundamentals Part 5 – IP Addressing in Depth

You’ve found the fifth part of the Network Foundation series.

Time to dive deeper into IP addresses!

This is critical information for anyone new to networking, or studying for CCNA or CCENT exams We spoke about CIDR in the last video. We can extend this by using different subnet masks for different purposes.

This is called Variable Length Subnet Masks (VLSM), and is something you will use every day. Every network has a few special addresses, like the network and broadcast address. It’s important to know which addresses these are, so you don’t use them incorrectly. As the internet has grown, we have used IP addresses faster than ever.

There is a limited pool of IP’s to use, and it is starting to run out! One of the methods used to slow this down is private addressing (as defined in RFC1918). Do you know how this conserves IP addresses?

Every device needs an address. But how does it get one. There are two main ways to address devices, and one not so usual one… Finally, we’ll look at the IP header that is applied to each packet. See some of the more common fields, and how they’re used.

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