https://www.youtube.com/watch?v=RbY8Hb6abbg Always wondered
   about how TCP/IP works? Here is a ridiculous animation from long
   ago. Of course it misses out on the newer information but that's
   not the point:* I challenge you: WATCH until you FIND THE BUNNY.
   If you watched long enough to find the bunny, you know how
   TCP/IP works.