In a prior video (https://youtu.be/7_NNlnH7sAg), I introduced you to the basics of the Virtual Private Cloud (VPC) in AWS. But what’s with all those different IP addresses (Private, Public, Elastic), and how does CIDR notation work?
In this video, I’ll explain in simple terms how it all works. We’ll see the differences between the types of IP addresses, and then get into details of CIDR notation (subnet masks and RFC 1918 ranges) and how that all works.
??If you’re interested in getting AWS certifications, check out these full courses. They include lots of hands-on demos, quizzes and full practice exams. Use FRIENDS10 for a 10% discount!
– AWS Certified Cloud Practitioner: https://academy.zerotomastery.io/a/aff_n20ghyn4/external?affcode=441520_lm7gzk-d
– AWS Certified Solutions Architect Associate: https://academy.zerotomastery.io/a/aff_464yrtnn/external?affcode=441520_lm7gzk-d
You might also be interested in this video about how to create a VPC and subnets using the AWS Console: https://youtu.be/HbTfONoekyM
00:00 – What the heck are private IP addresses, public IPs, Elastic IPs and CIDR notation?
00:38 – The differences between IP addresses, for beginners
03:29 – The anatomy of an IP address and binary octets
05:26 – How CIDR notation works, with examples
07:29 – CIDR subnet mask quick reference table
08:23 – A handy site to bookmark: cidr.xyz
09:15 – RFC 1918 private ranges
