Introduction to Cisco Networking Devices, Part 1, Second Edition is based on the content of the new 3.0 ICND1 course (previously known as INTRO) that was released in July 2007. This book is substantially different from the current edition INTRO 1.0 book that is currently on the market. The book covers the foundation topics of networking and provides an introduction to Cisco IOS and Cisco devices so that students will be able to understand the principals behind networking fundamentals and device configuration. The book will also contain materials that were moved from ICND2, version 2.0. The major topics include the fundamentals of networking, how networking devices work, IP addressing, connecting to the Internet, wireless networking, networking applications, the fundamentals of routing, connecting to a WAN and securing the network. The book wraps up with a case study describing everything discussed throughout the book. This book is aligned to the CCENT exam topics, and it is an excellent foundational resourse for not only that exam, but also for general introductory network technology learning.