About the Technical Reviewers
Henry Benjamin , CCIE, CCNA, CCDA, B. Eng., is a Cisco Certified Internetwork Expert and an IT network engineer for Cisco Systems, Inc. He has more than 10 years of experience in Cisco networks, including planning, designing, and implementing large IP networks running IGRP, EIGRP, and OSPF. In the past year, Henry has focused on architectural design and implementation in Cisco internal networks across Australia and the Asia/Pacific region. He is the author of a book dedicated to passing the CCIE written exam and has helped with many other titles related to Cisco IOS. Henry holds a Bachelor of Engineering Degree from Sydney University. This review is dedicated to his sick mum.
Kevin Burgess has been doing network design, analysis, and maintenance for the past 10 years. As a Network Engineer with EDS for the past five years, he has worked on various projects across Canada. Kevin holds certifications from Novell and Cisco and is currently working on his CCIE.
Andr Paree-Huff , CCNP, MCSE+I, ASE, A+, Network+, I-Network+, has been working in the computer field for more than 8 years. He is currently working for Compaq Computer Corporation as a Network Support Engineer, Level III, for the North America Customer Support Center in Colorado Springs, Colorado. Andr handles troubleshooting of network hardware, specializing in Layers 2 and 3 of the OSI model. Andr has co- authored four network-related technical manuals and has been a technical editor on many others. He is currently working toward his CCIE.
Dave Sumter , CCIE #4942, CCDP, has been in the networking industry for close to five years and has been concentrating solely on Cisco solutions for the last three years He works for Cisco Systems, Inc., in South Africa. Dave's current duties involve the design of large-scale campus and WAN solutions for corporate and government clients in South Africa. Other duties involve the ongoing training of Cisco partners and participation in the examination of CCIE candidates at the CCIE routing and switching lab in South Africa.
Michael Truett , CCNP, is a network engineer for a large organization specializing in VoIP. He is currently working on his CCDP and CCIE. His strength lies in the area of network design, implementation, and troubleshooting for large networks on many different media types, including Frame Relay and satellite. In his spare time, Michael also teaches several classes on Cisco routers and switches.
We would like to say thank you to the diligent and persistent efforts of Tracy Hughes, the entire Cisco Press staff, and our technical reviewers in helping to complete this book.
Cisco Systems, Inc., is the leading global supplier of internetworking hardware and software, with more than 100,000 devices deployed throughout public and private internetworks each year. At the time of this writing, these devices carry more than 80 percent of the public Internet's traffic. The aim of this book is to help novice Cisco users with the basic administration of their internetworking devices.
Each of these devices has Cisco proprietary operating system software called the Cisco Internetwork Operating System (IOS). The Cisco IOS software is a complicated real-time operating system consisting of multiple subsystems and tens of thousands of possible configuration parameters. Using straightforward, chronological descriptions and practical examples, this book focuses on the Cisco IOS software with respect to configuring, operating, and maintaining internetworking devices. In addition to covering general aspects of the IOS, we consider it in the context of the three most popular networking protocols used today: the Transmission Control Protocol/Internet Protocol (TCP/IP), Novell Inc.'s Internetwork Packet Exchange (IPX), and Apple Computer Inc.'s AppleTalk.