Introduce Chapter 8 of the "FreeBSD Corporate Networker's Guide" by Ted
Mittelstaedt to the repo. Permission to include this has been given by
Addison Wesley (specifically, Chanda Leary-Coutu <Chanda.Leary-Coutu@awl.com>).
DocBook markup by me (as was the ASCII art, I hope all of you readers not
using a graphical terminal appreciate it).