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Outlining IPv4

Outlining IPv4 - Wireshark Tutorial

From the course: Wireshark Essential Training

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Outlining IPv4

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- [Instructor] The internet protocol resides at the network layer of the OSI model. For this segment, we'll focus on IP version four. The internet protocol is responsible for addressing and routing. It's connectionless, meaning it's best effort. For example, if you were to send a letter general delivery, it will get there, but there's no guarantee. But we can provide quality of service to push the data along a little faster. Here's your IP version four header. And as you can see, we have several fields, and at the bottom, options and data. Let's take a look at an IP header. I'm in Wireshark and I've expanded one of the frames, and we'll take a look at that header. And on the right-hand side, you could follow along. All right, the first field is simply version. And in this case, it is version four. Not much there to show. This tells us the header length, and it is 20 bytes. And I can confirm if we go and place my cursor…

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