Explains the concept of DHCP, an application-layer protocol that your own computer probably uses to get an IP address from your network.
Here's a list of the sections in this video and their time codes:
00:14 - A world without DHCP
01:26 - DHCP to the rescue
02:15 - The four-step process
My DHCP video was originally uploaded on September 7th 2013, but I made a new version after an attentive viewer pointed out some inaccuracies.
== Further reading ==
Can I have multiple DHCP servers on one network?
How can IP conflicts be resolved?
The fine print: in some cases DHCP offer and ACK messages are unicast