Ping in Python

[Darrell]

From: "Doug Stanfield"
> Chapter 2, Networking, a section titled 'Emulating Ping'.  Good info that
> answers some of the "how does a PING work"
> Demo/sockets/udpecho.py".

AFIK udpecho.py isn't the same thing as ping.
I found some code to listen for a ping, but there's a lot I don't understand
about it.
It picks up pings coming from 127.0.0.1 but not from another machine ??

Ping uses an ICMP echo request, which requires some down an dirty socket
work.

--Darrell
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