What Is Wireshark Actually Showing Me? A Super Plain and Simple (SPS) Breakdown for Beginners

If you're like me, studying for the CompTIA A+ exam, or just trying to make sense of all of the IT tools out there, you might have downloaded Wireshark, opened it up, and thought: "What in the world is all this?!"

Don't worry. I felt the same way.

In this blog post, I'll explain exactly what Wireshark is and what it's showing you, using what I call the DSA method: deeply, simply, and with application. This means you're not just memorizing stuff—this post is designed to make sure you actually get it.

First: What Is Wireshark?

Wireshark is like an X-ray for your computer's internet traffic. It's a tool that shows you every little packet of data being sent or received on your network.

Think of your Wi-Fi like a post office, and every app on your computer is sending or receiving mail (data). Wireshark lets you watch the mail go in and out in real time.

Second: Look At The Following Wireshark Data To See What It Means

1 0.000000 2600:4040:464b... 2606:4700:4400... UDP 103 49691 → 443 Len=41

Let me break this down into simple parts:

Part	Explanation (Plain & Simple)
1	This is the first message (packet) Wireshark caught.
0.000000	It happened the moment I hit "Start."
2600:4040...	That long number is my computer’s IP address (it’s just the ID on the internet).
2606:4700...	That’s the IP address I’m talking to (a website or server).
UDP	The type of message. Kinda like texting—fast but not always 100% reliable.
103	Size of the message in bytes.
49691 → 443	My computer is sending from a random port (49691) to port 443 (that’s for secure websites—HTTPS).
Len=41	The actual length of the data being sent.

Third: What’s Happening Within My First 5 Packets

What I learned by slowing down and analyzing what Wireshark captured:

• My Mac is talking to servers at Cloudflare and Google.

• The conversations are short, fast, and back-and-forth.

• Port 443 means the conversation is secure (HTTPS).

• I didn’t do anything fancy—these are just background tasks.

Teach-Back (How I’d Explain This to My 12-Year-Old Cousin)

"Wireshark shows the hidden messages flying between your computer and websites. Each line is like a text message your laptop is sending or receiving. The long numbers are like addresses, and port 443 means it's using a safe door to talk to a website."

Real-Life Application

If a user contacts you and says, "My internet is slow," You can open Wireshark and see:

• Is my computer talking to a weird website?

• Are there too many messages flying at once?

• Is there an error showing up in the traffic?

Boom. Now I’m not just guessing—I’m observing.

Why Don't You Try This Yourself?

If you're using a Mac like me:

1. Download Wireshark from the official site.

2. During install, let it add the ChmodBPF helper (it’s safe).

3. Start a capture on Wi-Fi: en0 (that’s your wireless card).

4. Open a website and watch the packets fly in real time! Brace yourself, there's a lot to look at!

Final Takeaway

Wireshark isn’t scary—it’s just detailed. With a little help, breaking things down the SPS way, you can start using it as a powerful tool for your learning and your career.

Let me know in the comments what tripped you up the first time you opened Wireshark—or better yet, what made it click for you!

Want more plain-language tech breakdowns as I study for the CompTIA A+ and build real IT skills?

Check out the full blog at: https://randonmccrea9.wixsite.com/mccreatech