Note: these materials are copyright by Douglas Comer and
Prentice Hall.
Permission is granted to use the materials in college courses
for which the required textbook is Internetworking With TCP/IP
volume 1: Principles, Protocols, And Architecture.
No part of the materials may be used in professional venues
or for-profit courses; requests for such situations should
be made to the author or the publisher.
Two versions of the course materials are available: