FSNE: IP Addressing & Subnetting


In this module we will deconstruct the worlds of IP addressing and subnetting. We’ll begin with learning about IPv4 addresses and how we assign them. Then, we’ll jump into subnetting and provide you with the easiest method to perform subnetting by hand. By the end of this module you’ll even have the scoop on IPv6 and the world’s transition to this new way of doing IP addressing all across the globe!


  • Welcome (1 min)
    • Welcome to the IP Addressing & Subnetting Module!
IPv4 Addressing - 133 minutes
  • Binary and the IP Address (14 min)
    • Let’s start breaking down IP Addresses by looking at them in binary!
  • Network IDs and Subnet Masks (20 min)
    • Now, let’s learn how to understand the Network ID and the purpose of a Subnet Mask.
  • The Class System (12 min)
    • It’s time to learn about the Class System and Classfull networks.
  • Usable IP Addresses (8 min)
    • Let’s begin our lessons in subnetting by learning about usable IP address ranges.
  • Bit Identification Technique (14 min)
    • BIT = Bit Identification Technique (The best method to subnet by hand)
  • Class C Subnetting Examples (26 min)
    • Now for the good stuff – we’ll break down IPv4 subnetting with Class C based networks.
  • Class B Subnetting Examples (39 min)
    • In this lesson we will learn how to subnet with Class B Networks and beyond. We will also touch on the topic of supernetting and you will see how all this applies to the real world and Internet Service Providers.
Assigning IP Addresses - 36 minutes
  • IP Address Assignment (11 min)
    • How do we put an IP address on a computer? Let’s find out!
  • DHCP (with Lab) (25 min)
    • Let’s learn more about Dynamic Host Configuration Protocol and then do a lab to get it all setup in a network using Cisco IOS.
IP Version 6 - 32 minutes
  • IPv6 (32 min)
    • IPv6 is coming! Oh wait, it’s already here 🙂


Guidance and Motivation


The program is created by engineering veterans who worked at Cisco, Arista Networks, top VARs, and in the U.S. Air Force. The founders have trained over 1000+ engineers for the military and built this curriculum from the ground up in order to make you job and mission-ready!

Over 40+ years of combined industry experience have been poured out into our Full Stack Network Engineering program to take anyone from Zero to Engineer in 14 to 24 weeks.

Terry Kim

Founder and CEO of NexGenT – I’ve worked in the IT industry for 15+ years before starting this company and have been fortunate enough to work for some amazing companies such as Cisco Systems, Arista Networks, and Dimension Data as a Network Architect/Systems Engineer. And my mission is to help you level up in Information Technology!

Jacob Hess

I’m a Network Engineer, Entrepreneur, and Air Force veteran who is passionate about computer networking, education, and high performance teams. I enjoy people, teaching, learning, business, and cutting edge technology.

Bill Goodwin

20 years in the computer networking industry that has included campus enterprise and Service Provider backbone support.  Headed up the problem management team overseeing troubleshooting for all high profile issues at AT&T.  Began teaching Cisco networking as a Cisco Netacad Instructor in 2007.  My focus is to get students CCNA certified.

John Meersma

I am a Network, Collaboration, and Automation Engineer with a passion for helping others become their technical best. I have worked with and taught technology for over twenty years. Learning Cisco and becoming certified change my life. I am committed to helping others do the same.