[TCP/IP] Data link layer-ethereal packet capture and analysis data frame

Ethereal is a popular computer network debugging and packet sniffing software. The editor of this article will take everyone to learn ethereal packet capture and analysis data frames.

1. Download http://dx1.pc0359.cn/soft/e/ethereal.rar

2. Open the software and specify the network card to capture. Here is what I captured myself Main network card data

3. Start a ping command, ping a server continuously, see icmp protocol ping ip address-t

4. Check the destination MAC address and source MAC address of the data frame and type 0800 represents ip and data

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