[Network] Easy introduction to IP addresses

Thank you. People who get killed twice with docker kill are cute.
Lately, I've been drinking more coffee after the holidays, but how is everyone doing?

There was an in-house study session the other day, and I was given the opportunity to speak on the podium.

I spend my days looking at the dazzling faces of our new graduates, and when I look at their daily reports, I find myself asking things like "What is IP?", "What is routing?", and "What is NAT?" The contents are flying around and I feel like I'm new every day (I also entered this industry with no experience, so it makes me feel nostalgic)

This may sound sudden, but networking is difficult and deep.

The introduction is long, but today I'll be publishing the slides for "Easy IP Address Introduction" that I presented at the study session⬇
20220519_Easy Introduction to IP Addresses

I have experienced this myself, but no matter what books I read, calculating IP addresses is difficult for people who are not good at mathematics to understand.

I think calculating subnets in particular is complicated, but only a few years ago I realized that it's not that difficult as long as you can basically convert binary numbers to decimal numbers. (*There are individual differences)

I hope that this article will help those who are studying networks to understand this article.