![]() ![]() ![]() ICMP is a diagnostic protocol and has a number of different message types, each one responsible for communicating a specific event - be it a ping request (called an Echo Request), a ping reply (called an Echo Reply), or a number of other diagnostic results.Įach message type consists of two fields, a Type field, which is a general grouping of similar sub-types, called Codes. Ping however uses a protocol called ICMP. Most traffic on the internet is encapsulated in either TCP, or UDP. ICMP and Ping ICMP (Internet Control Message Protocol) I’m not going to cover every detail, but a few key topics that have helped me troubleshoot and better understand issues over the years. So if you’ve ever used ping or traceroute, and wanted to know a little more, read on. I’ve found that having a good networking foundation has been a tremendous help in my day to day work. I wanted to write a post and do a bit of a deepdive into ICMP, ping and traceroute. ICMP, Ping, and Traceroute - What I Wish I Was Taught ![]()
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