4.1. Our Zone

Our fictitious zone serves a college. Movie University studies all aspects of the film industry and researches novel ways to (legally) distribute films. One of our most promising projects involves research into using IP as a film distribution medium. After visiting our registrar's web site, we have decided on the domain name movie.edu. A recent grant has enabled us to connect to the Internet.

Movie U. currently has two Ethernets, and we have plans to add another network or two. The Ethernets have network numbers 192.249.249/24 and 192.253.253/24. A portion of our host table contains the following entries:

127.0.0.1      localhost

# These are our main machines

192.249.249.2  shrek.movie.edu shrek
192.249.249.3  toystory.movie.edu toystory toys
192.249.249.4  monsters-inc.movie.edu monsters-inc mi

# These machines are in horror(ible) shape and will be replaced
# soon.

192.253.253.2  misery.movie.edu misery
192.253.253.3  shining.movie.edu shining
192.253.253.4  carrie.movie.edu carrie

# A wormhole is a fictitious phenomenon that instantly transports
# space travelers over long distances and is not known to be
# stable.  The only difference between wormholes and routers is
# that routers don't transport packets as instantlyespecially
# ours.

192.249.249.1  wormhole.movie.edu wormhole wh wh249
192.253.253.1  wormhole.movie.edu wormhole wh wh253

And the network is pictured in Figure 4-1.

Figure 4-1. The Movie University network