How Does the Ping Command Really Work? A Deep Dive with Wireshark
This article explains the inner workings of the ping command by capturing and analyzing ICMP and ARP traffic with Wireshark, detailing the protocol basics, packet formats, ARP caching behavior, and how to interpret latency measurements for accurate network troubleshooting.
Test Environment and Packet Capture
Two hosts on the same LAN were used:
Host A : IP = 192.168.2.135, MAC = 98:22:EF:E8:A8:87
Host B : IP = 192.168.2.179, MAC = 90:A4:DE:C2:DF:FE
Wireshark was started on the interface that connects the two hosts. The ping command was executed from A to B: ping 192.168.2.179 Wireshark captured the entire exchange, showing the standard seven‑column view (No, Time, Source, Destination, Protocol, Length, Info).
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Liangxu Linux
Liangxu, a self‑taught IT professional now working as a Linux development engineer at a Fortune 500 multinational, shares extensive Linux knowledge—fundamentals, applications, tools, plus Git, databases, Raspberry Pi, etc. (Reply “Linux” to receive essential resources.)
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