Network, Let's Understand with Animation and Illustrations (2025ver.)

Learn about networks easily, quickly, and engagingly with pictures and videos!

(4.9) 60 reviews

530 learners

Level Beginner

Course period Unlimited

Network
Network
Protocol
Protocol
Wireshark
Wireshark
Network
Network
Protocol
Protocol
Wireshark
Wireshark

Reviews from Early Learners

4.9

5.0

CD K

32% enrolled

Your voice is pretty.

5.0

dgh12

13% enrolled

I'm just starting, but the animation is included and the images are clean, making it easy to understand. The content is also well-organized, so I don't have to put in much effort to organize it separately. Thank you for the good lecture! :D

5.0

๊น€๋ฏผ์„œ

33% enrolled

I am a sophomore majoring in Computer Science. I was struggling with Data Communications because it felt so abstract, but after listening to just the physical and data link layer sections, it has become so much easier to follow along in class. I feel like I'm finally grasping the big picture.

What you will gain after the course

  • Packet Analysis

  • Protocol

  • TCP/IP

  • Packet structure and fields of each header

2025 Latest Version!
Understanding Networks Through Illustrations and Animations!

Network made easy and intuitive,
Follow along with illustrations and motion graphics!

We learn about the roles and flow between TCP/IP and OSI layers

Learn intuitively and easily through illustrations and motion

Let's examine some packet headers of important protocols using Wireshark.

Packets and protocols, learn more about the fields in each header.

Through this, you can extend your learning of packet analysis!

You can download a PDF summary of all lectures!

(approximately 180+ pages) --- Note: I've translated this short phrase as requested. The parentheses an

What will you learn?

Learn about the roles between layers

Learn how each layer interacts with others and how they are referenced in the network.

Learn about the role of protocols

Learn about the roles of protocols at each layer. We'll explore the operating principles of essential protocols including Ethernet, IP, TCP, UDP, QUIC, HTTP, DHCP, and many others!

Learn about the structure of packets at each layer

We'll take a closer look at the structure of Ethernet headers, IP headers, and TCP headers. We'll examine the structure of each header in the packet in more detail and learn what role all the fields in the headers play.

Let's analyze the structure and fields of headers through hands-on practice

You can intuitively understand at a glance through tables and diagrams how the Ethernet header, IP header, and TCP/UDP header that we learned earlier are displayed in Wireshark.

Protocol PrinciplesLet's learn about them.

What is the difference between the supplementary textbook and the lecture?

  1. Books focus on text-centered, refined writing, while lectures are animation-focused.
    You can purchase the book as a way to own the lecture content.

  2. The course omits TCP congestion control/flow control and routing protocols such as RIP, OSPF, BGP, etc.(meaning this content is included in the book)
    The book omits packet structure and Wireshark practice content. (meaning this content is included in the course)

  3. If you're concerned about the cost aspect, I tend to recommend books for undergraduate students.


Practice Environment

  • Please install Wireshark in advance!

  • Since the screen is split in half during practice sessions, if you take the course on a laptop, you may experience discomfort, so we recommend using dual monitors for the practice sections.

Learning Materials

Prerequisites and Important Notes

  • No prior knowledge is required.


  • We recommend turning on subtitles for learning.Unlike previous lectures, Inflearn has its own subtitle feature, so I didn't add subtitles directly myself. Although I re-recorded several times, to prevent the pronunciation from sounding muffled, I recommend using Korean subtitles.


Recommended for
these people

Who is this course right for?

  • Undergraduate student who wants to understand networking easily and enjoyably

  • Undergraduates/professionals wanting quick, intuitive understanding over text learning

  • Undergrads/Workers needing a quick network overview & diagrams

Hello
This is artprogrammer6403

1,789

Learners

175

Reviews

23

Answers

4.8

Rating

2

Courses

Hello, this is DevAtix.
I am uploading CS lectures that make learning fun by utilizing motion graphics (After Effects, Illustrator, and other Adobe programs) and interactions,
and
writing CS books that allow you to learn through illustrations.

I am currently writing "Do it! Computer Architecture."

 

bachelor's degree

  • B.S. in Information Systems Engineering

 

Publications & Writing

Lectures

 

Awards

  • 2022 Inflearn Year-End Awards
    Infreaner's Pick 'The Most Loved Course by Infreaners This Year' [Security/Network] Category Winner

 

Additional Achievements / Others

  • Won multiple awards (8+) including Grand Prize, Gold Prize, and Silver Prize by participating in numerous contests, book review competitions, and writing contests.

  • Brunch

 

Email Address : artprogrammer6403@gmail.com

More

Curriculum

All

46 lectures โˆ™ (3hr 41min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

60 reviews

4.9

60 reviews

  • neol48966612๋‹˜์˜ ํ”„๋กœํ•„ ์ด๋ฏธ์ง€
    neol48966612

    Reviews 2

    โˆ™

    Average Rating 5.0

    Edited

    5

    9% enrolled

    The teacher's diction is easy to listen to, and the visualizations are well-done, making it easy to understand.

    • lyw74826909๋‹˜์˜ ํ”„๋กœํ•„ ์ด๋ฏธ์ง€
      lyw74826909

      Reviews 5

      โˆ™

      Average Rating 5.0

      5

      16% enrolled

      First, I finished listening to all of Section 1 and am leaving a review - if you're starting out with networking, you definitely won't regret taking this course.

      • Hello, Yunu! I was so happy the moment I saw your wonderful review. I hope you'll continue to be satisfied as you complete the remaining chapters, including the practice sessions. Thank you, and have a great day!

    • wwwbbb10977๋‹˜์˜ ํ”„๋กœํ•„ ์ด๋ฏธ์ง€
      wwwbbb10977

      Reviews 9

      โˆ™

      Average Rating 5.0

      Edited

      5

      13% enrolled

      I'm just starting, but the animation is included and the images are clean, making it easy to understand. The content is also well-organized, so I don't have to put in much effort to organize it separately. Thank you for the good lecture! :D

      • 2025133413628๋‹˜์˜ ํ”„๋กœํ•„ ์ด๋ฏธ์ง€
        2025133413628

        Reviews 1

        โˆ™

        Average Rating 5.0

        5

        33% enrolled

        I am a sophomore majoring in Computer Science. I was struggling with Data Communications because it felt so abstract, but after listening to just the physical and data link layer sections, it has become so much easier to follow along in class. I feel like I'm finally grasping the big picture.

        • kwindow22164๋‹˜์˜ ํ”„๋กœํ•„ ์ด๋ฏธ์ง€
          kwindow22164

          Reviews 1

          โˆ™

          Average Rating 5.0

          5

          32% enrolled

          Your voice is pretty.

          • Agreed.. Your voice is really pretty.. Artist-developer...๐Ÿ’•

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