Files in this directory are figures from the text Douglas Comer, Interenetworking With TCP/IP Volume 1: Principles, Protocols, and Architecture, Prentice Hall, 2013. The files are copyright by Pearson Education. We make the figures freely available to instructors who adopt the above text as the textbook in their course or to readers who want copies for their personal use. No other uses are permitted. For questions, contact the author at comer@cs.purdue.edu