Subnet Masking: Breaking Down Networks

• ICT
• MBO
• Studiejaar 1

Subnet Masking: Breaking Down Networks

Learning Objective

At the end of the lesson you will be able to understand what subnet masking is

Introduce the learning objective of the lesson

What do you already know about subnet masking?

What is a Subnet?

A subnet is a smaller network within a larger network.

Introduce the concept of subnetting and explain how it can be used to break down large networks

Why Use Subnet Masking?

Subnet masking allows us to divide IP addresses into network and host portions.

Explain the need for subnet masking and how it helps in network management

Binary Notation

Subnet masks are represented in binary notation using 1's and 0's.

Introduce binary notation and how it is used in subnet masking

Subnet Masking Notation

Subnet masks are written using a dotted decimal notation.

Explain the dotted decimal notation and how it is used to represent subnet masks

Subnet Mask Examples

Examples: 255.255.255.0, 255.255.0.0, 255.0.0.0

Provide examples of subnet masks and their corresponding CIDR notation

CIDR Notation

CIDR notation is used to express the size of a subnet mask.

Define CIDR notation and how it is used in subnet masking

Calculating Subnets

To calculate subnets, you need to use the subnet mask and IP address.

Explain how to calculate subnets using the given IP address and subnet mask

Conclusion

Subnet masking allows for more efficient use of IP addresses and better network management.

Summarize the main points of the lesson and emphasize the importance of subnet masking

Write down 3 things you learned in this lesson.

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.

Write down 2 things you want to know more about.

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.

Ask 1 question about something you haven't quite understood yet.

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.