The Internet Checksum

What on earth is the "16-bit one's complement of the one's complement sum"? In this video, I explain how the internet checksum is computed. I also explain what it can do and what it can't do.

Notes here:
https://ursinusnetworks.github.io/Modules/Checksum/Video1

Table of Contents:
00:00 Sending and capturing a UDP packet over a mininet network
03:15: One's complement addition
11:05: Implementing checksum in python
16:52: Special case for IP+ICMP checksums
19:28 Limitations of checksums

Видео The Internet Checksum канала Chris Tralie