Hour 5. Subnetting and CIDR

What You’ll Learn in This Hour:

• Subnetting

• Subnet masks

• CIDR notation

Subnetting lets you use IP addressing to break up a physical network into smaller logical entities called subnets. This hour addresses the needs and benefits of subnetting, as well as the steps and procedures you should follow to generate a subnet mask.

At the completion of this hour, you will be able to

• Explain how subnets are used

• Explain the benefits of subnetting

• Develop a subnet mask that meets business needs

• Describe supernetting and CIDR notation