Subnetting
Hearing the word subnetting can be a bit intimidating when learning a networking-related certification. However, learning subnetting is unavoidable on your journey to becoming an awesome network engineer. You may be wondering, what is subnetting and why do we need to learn how to perform this task as a networking professional? To get a better understanding of the answer to this question, let's use a simple analogy. Let's imagine you are the network administrator at a company that has 6 networks, and each of these networks has no more than 50 devices that require an IP address.
It would be easy to simply take a Class C network block such as 192.168.1.0/24 and assign it to the network, then choose another Class C address block to assign to the next network, and so on. The following is a typical workable solution for assigning network blocks to the 6 networks:
- Network 1:
192.168.1.0/24 - Network 2:
192.168.2.0/24 - Network 3:
192.168.3.0/24 - Network...
