TCP-IP Overview Part 2

This is part 2 of my overview of TCP/IP. Later videos in this playlist will cover each protocol in more detail.

This video briefly (1 hour total) covers the following topics:
IPv4 packet header
IPv4 address format
IPv6 packet header
IPv6 address shortening and lengthening rules
Special IPv4 addresses
Special IPv6 addresses
Special MAC/Ethernet addresses
IPv4 hop-by-hop address behavior
IPv6 hop-by-hop address behavior
TCP segment header
TCP/UDP port
5-tuple
netstat -an
UDP datagram header
(very brief) ICMP and DNS

Image sources:

This is a resubmission with fixed dual-audio. Thank you hydratech101 for reporting the problem!