<p>Klaatu goes over IP (Internet Protocol), its header information, the mechanics of datagram fragmentation, and RFC 791 in general.</p>
<p>see also <a href="https://www.ietf.org/rfc/rfc791.txt" target="_blank">RFC 791</a><br />
<a href="https://iana.org/assignments/protocol-numbers/" target="_blank">iana protocol number assignments</a></p>
<p>Listen to <a href="https://www.thebadapples.info/audiophile/hpr_networkBasics5.ogg" target="_blank">this episode</a> in ogg.</p>