It's so powerful! Packet Tracer Packet capture

First of all, let's start the Cisco Packet Tracer software. I use Version 5.3. If the English language is really bad, we can turn the software into Chinese. We recommend using the English version, which is good for learning. After the software is enabled, the normal mode is the real mode. Click "switch mode" in the lower-right corner to switch to "analog mode". The interface is as follows: Well, let's close the window popped up below. Next, we will build a topology and make some simple configurations, such as IP addresses and routing protocols. My topology is as follows: All the IP addresses in the PC are obtained from the DHCP Server. Good! Click the tool below: for example, we need to Ping the DHCP Server from the PC-1, after the tool above, just click on the source and target PC. Next, we manually control the packet sending process (or automatic). See figure: OK! Select the package automatically popped up on the source PC and the target PC. Let's click this package. What can we see? Please refer to: Have you seen it? We can see the information on the first, second, and third layers. Click the window above. You will see the following picture. I think it is quite powerful and beneficial to our learning. It is very rare to understand the underlying things. This is a good thing. True. You can also find many other packages: The feature is very powerful, and we strongly recommend new users and friends who want to improve! I will not talk about it here. Do it yourself. If you can understand all these packages, you will be very good.
 

The road to network engineers from tornado