IP Subnetting tutorial | How to subnet IPv4 addresses

If you're looking to understand IP Subnetting, or are getting a start in computer networking, this complete subnetting guide is for you. In this video, I will walk you through how to subnet IPv4 addresses.
#subnetting #ipaddress #ipv4 #ccna
Please feel free to bookmark this video and use it for reference.
My website:
richtechguy.com
Practice IPv4 subnetting with my Subnetting practice tool:
richtechguy.com/subnetting-pr...
Additional study resources (Affiliate Links):
CCNA 200-301 Official Cert Guide Library
Amazon (Kindle): amzn.to/41LmU2B
Amazon (Hardcover): amzn.to/3S2N2me
IP Subnetting - From Zero to Guru
Amazon (Kindle): amzn.to/3H3vVdN
Amazon (Paperback): amzn.to/3tDhCtm
Chapters:
0:00 - Intro
1:19 - What is an IP Address?
4:38 - IP Address Classes
9:05 - Understanding Binary Numbers
13:56 - Subnet Masks Explained
21:01 - Calculating IPs in a Subnet
24:47 - Finding the Network & Broadcast IPs
29:04 - Subnet Mask CIDR notation
32:32 - Classful vs Classless IP subnets
35:14 - Private IP Addresses
37:24 - Special IP Addresses
40:28 - Practice, Practice, Practice!

[@BruceAlmighty1]

OK, this helped way more than all the videos I watched and hours I spent figuring it out. 29:03 Everything just finally clicked and I could solve these easily now. Thank you so much.

[@RichTechGuy]

I'm glad this video helped! Thank you.

[@weslynmann9702]

Awesome tool ❤

[@DominicChukwuma-ww6ow]

Please do video on 5 basic network command

[@DominicChukwuma-ww6ow]

Nice video

[@sajith2702]

Your explanation was too good. Thank you so much for this video. You made subnetting so easy to understand. 🎉

[@n19ence]

RichTechGuy - Thank You / Master level explanation of the IPv4 Construct and how it is practically implemented. I struggled with this concept until you brought clarity. I knew that I could manage my way through Subnetting however I did not consider myself good enough to Finesse the working details as well as explain, as you did this with little effort - Kudos. I am so glad that I found and subscribed to your channel I will pick through your playlist with computer and popcorn and a drink to enjoy the learning. 🤓 Again thanks for making this topic less than a headache for all who care to watch the video.

[@letung932]

Wow this is a great video. Thank you so much

[@guyarp3767]

You're the best thank you so much❤

[@user-tm9et8wp2p]

Thanks for this great video! I do have one question I'm struggling with: I'm using your tool and and have an ip of 115.163.109.207 and a subnet mask of 255.255.248.0. I get everything right but the broadcast IP address. The solution per all the calculators I've used including yours give 115.163.111.255 as the broadcast address. In the example in your video, you have 172.16.15.25 and subnet 255.255.240.0; The broadcast address works out as follows: Broadcast: 10101100.00010000.00001111.11111111 Broadcast Address: 172.16.15.255 Well that makes sense, the 1111 = 15. But, in the tool when the problem is an ip of 115.163.109.207 and a subnet mask of 255.255.248.0, the broadcast address portion of the third octet is 00000111. I would think 111 =7, as in the your video example, 00001111 is 15, but apparently it's 111 and I have no idea why. Can you give me any clarity? Thank you!

[@RichTechGuy]

With the following IP: 115.163.109.207 and subnet mask: 255.255.248.0 (Or 115.163.109.207/21) IP Address: 01110011.10100011.01101101.11001111 Subnet mask: 11111111.11111111.11111000.00000000 Network IP: 01110011.10100011.01101000.00000000 115.163.104.0 Broadcast IP: 01110011.10100011.01101111.11111111 115.163.111.255 The third octet is the relevant octet and the subnet mask splits it at 5 bits and 3 bits: Network 01101 | 101 Host The octet's network IP is as follows: Network 01101 | 000 Host --> (104) The octet's broadcast IP is as follows: Network 01101 | 111 Host --> (111)

[@alexunixaxwell3952]

The entire 127 range is reserved for Lookpack... A 0.0.0.0 - 126.255.255.255 / B 128.0.0.0 - 191.255.255.255

[@RichTechGuy]

I do specifically call out the 127.0.0.0/8 address space as the local loopback address later in the video (timestamp: 37:32), but that does not take it out of the Class A IP address space. The 127.0.0.0/8 range is a classful subnet based on the rules of Class A IP addresses.

[@alexunixaxwell3952]

@@RichTechGuy Yeah sorry for making you reply, I saw it later in the video. But both me and my teacher agree that it should be classless... like making A 0-126 and B 128-191, but it is what it is :))