Subnetting is the practice of dividing a given block of addresses into subunits. This is done to meet organizational, security, and performance needs. In this course, you will learn the differences between fixed-length subnet masks and Variable-Length Subnet Masks or VLSMs. We will cover how subnet values are calculated and how to use VLSM to subnet a given address block. You’ll also learn how VLSM relates to Classless Inter-Domain Routing, better known as CIDR.
A strong foundation of basic networking concepts
Bill has 20 years of experience teaching a broad range of IT subjects including Certified Wired Network Administrator, Network Plus, Security Plus, and Understanding Networking Fundamentals. He holds a variety of certifications including CTT+, Network+, Mobility+, Security+, CCWNT, CWTS, and CWNA.