> many are unable to figure it out from first principles no matter how many ques... | Hacker News

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		gumby on Dec 5, 2023 \| parent \| context \| favorite \| on: Show HN: How did your computer reach my server? > many are unable to figure it out from first principles no matter how many questions I answer about TCP/IP TBF it's neither TCP nor IP, but ICMP :-) Edit: I meant to write "neither TCP nor UDP" -- but even though I could make the correction I'll leave my error in place.

js2 on Dec 5, 2023 [–]

It's IP and ICMP and possibly UDP, which are all part of TCP/IP, aka the Internet protocol suite.

geraldcombs on Dec 5, 2023 | [–]

The traceroute that ships with macOS supports ICMP, UDP, TCP, and GRE. As I recall, the one(s) available on most Linux distributions do as well.

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