`ping` - send ICMP ECHO_REQUEST to network hosts

ping [-c COUNT] host

Options you will use

-c COUNT: Stop after COUNT packets.
-M PMTUDISC_OPT: Path MTU discovery: do = never fragment (find the largest packet that gets through), dont, want.
-s PACKETSIZE: Bytes of data to send (default 56, 84 on the wire with the headers).

Taught in

8.14 Layer 2: ARP and the neighbour table

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