July 2024
Beginner
608 pages
18h 25m
English
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11 Subnetting IPv4 networks
This chapter covers
- What subnetting is and why it’s necessary
- How to borrow bits from the host portion of a network to expand the network portion and create subnets
- How to identify the five attributes of a subnet
- How to divide a network into subnets of equal and variable sizes
In chapter 7, we covered IPv4 address classes, focusing on classes A, B, and C—the three classes of addresses which can be assigned to hosts. Each class is defined by the first bit(s) of the address, and the prefix length of addresses in each range is also defined:
-
Class A addresses begin with 0b0 and use a /8 prefix length.
-
Class B addresses begin with 0b10 and use a /16 prefix length.
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Class C addresses begin with 0b110 and use a /24 ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.