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228_VoIP2e_FM.qxd 8/14/02 4:29 PM Page i s o l u t i o n s @ s y n g r e s s . c o m With more than 1,500,000 copies of our MCSE, MCSD, CompTIA, and Cisco study guides in print, we continue to look for ways we can better serve the information needs of our readers. One way we do that is by listening. Readers like yourself have been telling us they want an Internet-based service that would extend and enhance the value of our books. Based on reader feedback and our own strategic plan, we have created a Web site that we hope will exceed your expectations. [email protected] is an interactive treasure trove of useful information focusing on our book topics and related technologies. The site offers the following features: (cid:2) One-year warranty against content obsolescence due to vendor product upgrades. You can access online updates for any affected chapters. (cid:2) “Ask the Author” customer query forms that enable you to post questions to our authors and editors. (cid:2) Exclusive monthly mailings in which our experts provide answers to reader queries and clear explanations of complex material. (cid:2) Regularly updated links to sites specially selected by our editors for readers desiring additional reliable information on key topics. Best of all, the book you’re now holding is your key to this amazing site. Just go to www.syngress.com/solutions, and keep this book handy when you register to verify your purchase. Thank you for giving us the opportunity to serve your needs. And be sure to let us know if there’s anything else we can do to help you get the maximum value from your investment. We’re listening. www.syngress.com/solutions 228_VoIP2e_FM.qxd 8/14/02 4:29 PM Page ii 228_VoIP2e_FM.qxd 8/14/02 4:29 PM Page iii 1 YEAR UPGRADE BUYER PROTECTION PLAN Configuring Cisco I P Voice Over S e co n d Ed i t i o n Paul J. Fong Eric Knipp David Gray Scott M. Harris Larry Keefer, Jr. Charles Riley Stuart Ruwet Robert Thorstensen Vincent Tillirson Michael E. Flannagan Technical Reveiwer Jason Sinclair Technical Editor 228_VoIP2e_FM.qxd 8/14/02 4:29 PM Page iv Syngress Publishing,Inc.,the author(s),and any person or firm involved in the writing,editing,or production (collectively “Makers”) of this book (“the Work”) do not guarantee or warrant the results to be obtained from the Work. There is no guarantee of any kind,expressed or implied,regarding the Work or its contents.The Work is sold AS IS and WITHOUT WARRANTY.You may have other legal rights,which vary from state to state. In no event will Makers be liable to you for damages,including any loss of profits,lost savings,or other incidental or consequential damages arising out from the Work or its contents.Because some states do not allow the exclusion or limitation of liability for consequential or incidental damages,the above limitation may not apply to you. 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KEY SERIAL NUMBER 001 8TPK9H7GYV 002 H8UN7W6CVF 003 439HF5TS3A 004 Z2B76Z2N9Y 005 UT5R39SC4E 006 X6BUMP7NS6 007 4EPQ2AKG6R 008 9BKG8DM5D7 009 SW4KFAUPFH 010 5BVM39ZCV6 PUBLISHED BY Syngress Publishing,Inc. 800 Hingham Street Rockland,MA 02370 Configuring Cisco Voice Over IP, Second Edition Copyright © 2002 by Syngress Publishing,Inc.All rights reserved.Printed in the United States of America.Except as permitted under the Copyright Act of 1976,no part of this publication may be reproduced or distributed in any form or by any means,or stored in a database or retrieval system, without the prior written permission of the publisher,with the exception that the program listings may be entered,stored,and executed in a computer system,but they may not be reproduced for publication. Printed in the United States of America 1 2 3 4 5 6 7 8 9 0 ISBN: 1-931836-64-7 Technical Editor:Jason Sinclair Cover Designer:Michael Kavish Technical Reviewer:Michael E.Flannagan Page Layout and Art by:Shannon Tozier Acquisitions Editor:Catherine B.Nolan Copy Editor:Darlene Bordwell Developmental Editor:Jonathan Babcock Indexer:Nara Wood Distributed by Publishers Group West in the United States and Jaguar Book Group in Canada. 228_VoIP2e_FM.qxd 8/14/02 4:29 PM Page v Acknowledgments We would like to acknowledge the following people for their kindness and support in making this book possible. Ralph Troupe,Rhonda St.John,Emlyn Rhodes,and the team at Callisma for their invaluable insight into the challenges of designing,deploying and supporting world- class enterprise networks. Karen Cross,Lance Tilford,Meaghan Cunningham,Kim Wylie,Harry Kirchner,Kevin Votel,Kent Anderson,Frida Yara,Jon Mayes,John Mesjak,Peg O’Donnell,Sandra Patterson,Betty Redmond,Roy Remer,Ron Shapiro,Patricia Kelly,Andrea Tetrick, Jennifer Pascal,Doug Reil,David Dahl,Janis Carpenter,and Susan Fryer of Publishers Group West for sharing their incredible marketing experience and expertise. Jacquie Shanahan,AnnHelen Lindeholm,David Burton,Febea Marinetti,and Rosie Moss of Elsevier Science for making certain that our vision remains worldwide in scope. David Buckland,Wendi Wong,Marie Chieng,Lucy Chong,Leslie Lim,Audrey Gan, and Joseph Chan of Transquest Publishers for the enthusiasm with which they receive our books. Kwon Sung June at Acorn Publishing for his support. Jackie Gross,Gayle Voycey,Alexia Penny,Anik Robitaille,Craig Siddall,Darlene Morrow,Iolanda Miller,Jane Mackay,and Marie Skelly at Jackie Gross & Associates for all their help and enthusiasm representing our product in Canada. Lois Fraser,Connie McMenemy,Shannon Russell,and the rest of the great folks at Jaguar Book Group for their help with distribution of Syngress books in Canada. A special welcome to the folks at Woodslane in Australia! Thank you to David Scott and everyone there as we start selling Syngress titles through Woodslane in Australia, New Zealand,Papua New Guinea,Fiji Tonga,Solomon Islands,and the Cook Islands. vv 228_VoIP2e_FM.qxd 8/14/02 4:29 PM Page vi Contributors Sam Cushway is a Senior Consultant with Callisma where he designs and implements routing and switching solutions for several of Callisma’s clients.His specialties include Cisco hardware,strategic network planning, network architecture and design,and network troubleshooting and optimization.Sam has 12 years of experience in data communications and his background includes positions as a Senior Network Engineer at TCI Cable and WorldCom.Sam is a CCIE candidate with a focus on internetworking and convergence. Paul J. Fong (CCNP,CCDP) holds a bachelor’s and master’s degree from Stanford University.While pursuing his studies,Paul developed speech recognition software at the Xerox Palo Alto Research Center and published his work in IEEE Transactions on Systems,Man and Cybernetics. His background includes positions as an Advisory Systems Analyst at IBM where he developed a network monitoring system for NASA Space Shuttle telemetry,and as a Senior Member of the Technical Staff at MCI where he played a key role in the development of the SRDF-over-IP protocol.He is also a contributor to Configuring IPv6 for Cisco IOS (Syngress Publishing,ISBN:1-928994-84-9).Paul is a member of the Colorado Springs Cisco Users Group and lives in Monument,CO with his wife,Sharon,and their daughter,Shana. David Gray (CCNA,CCDA,CCNA-WAN Switching,MCSE,ASE, Brocade Fabric Professional) is a Consultant with Callisma.David specializes in IP telephony and convergence,Active Directory design and implementation,storage area networking,service provider networks to include optical design and implementation.David’s background includes positions as a Senior Project Engineer for WorldCom,an engineer for Digital Equipment Corporation/Compaq,and as an analyst for a variety of other firms. vi 228_VoIP2e_FM.qxd 8/14/02 4:29 PM Page vii Scott M. Harris (CCDP,CCNP,MCNE) is a Senior Consultant with Callisma with a focus on internetworking and data/voice/video integra- tion.His background includes 14 years of network experience in small, medium,and large network infrastructures.He currently provides business consultation on the planning,design,implementation,and Day Two support of Cisco AVVID.He has worked with a variety of public and private sector businesses and government institutions on switched LAN and WAN design,implementation,support,and training. Larry Keefer, Jr. (CCNP,CCDP,MCSE,MCP+I,MCNE,CNE-3, CNE-4,CNE-5,CNE-GW,BCFP,BCSD) is a Senior Consultant with Callisma in Atlanta,GA.He currently provides senior-level strategic and technical consulting to Callisma clients throughout the United States.His specialties include Cisco routers and LAN switches,Microsoft Windows NT/2000,Novell NDS,IP telephony,storage area network (SAN) planning,design,implementation,and support for large enterprise organizations.Larry is a contributing author for Syngress Publishing’s Cisco AVVID & IP Telephony Design and Implementation (ISBN:1-928994-83-0). Larry’s background includes a position as a Senior Network Engineer/ Team Leader at Rush Creek Solutions (formerly BPI) for enterprise and government organizations in the Rocky Mountain region.Larry holds a bachelor’s of Science degree from Illinois Status University and has com- pleted coursework towards a master’s degree in Information Systems from the University of Phoenix.Larry currently resides in Woodstock,GA with his family,Carol,Kayla,and Kristin. Eric Knipp (CCNP,CCDP,CCNA,CCDA,CIPT,CUSE,MCSE-2000, MCSE,MCP+I) is a Consultant with Callisma.Eric specializes in IP telephony and convergence,Cisco routers,LAN switches,Active Directory design and implementation,and network design and implementation.He has passed both the CCIE Routing and Switching written exam as well as the CCIE Communications and Services Optical qualification exam. Eric is currently preparing to take the CCIE lab later this year.Eric’s background includes positions as a Project Manager for a major international law firm and as a Project Manager for Nortel.Eric is also a contributing author to Cisco AVVID & IP Telephony Design and Implementation vii 228_VoIP2e_FM.qxd 8/14/02 4:29 PM Page viii (Syngress Publishing,ISBN:1-928994-83-0),Managing Cisco Network Security,Second Edition (Syngress Publishing,ISBN:1-931836-56-6),and Configuring IPv6 for Cisco IOS (Syngress Publishing,ISBN:1-928994-84-9). Estevan Macias (CCIE#5236,CCNA,CCDA,CCNP,CCDP,CIPT, CSS1,CCIE WAN Switching,MCSE,MCP+I) is a Senior Consultant with Callisma.He currently provides senior-level strategic and technical consulting to all Callisma clients in the western region of the United States.His specialties include Cisco routers and LAN switches,ATM WAN switches,security,design and implementation,strategic network planning,network architecture and design,and network troubleshooting and optimization.Estevan’s background includes positions as a Senior Engineer at Timebridge Technologies,and as a Network Engineer at Convergent Communications in the professional services division.Estevan holds a master’s of Science in Telecommunications from the University of Denver,and a bachelor’s of Science in Computer Networking from Regis University. Charles Riley (CCNP,CSS1,CISSP,CCSA,MCSE,CNE-3) is a Network Engineer with a long tenure in the networking and security fields.Charles is the author of the CCNP Routing Study Guide (Osborne McGraw Hill).He has designed and implemented robust networking solutions for several Fortune 500 companies.He started with the U.S. Army at Fort Huachuca,AZ,eventually finishing his Army stretch as the Network Manager of the Seventh Army Training Command in Grafenwoehr,Germany.As a consultant for Sprint in Kansas,Charles developed and managed solutions involving data center design,network migration,storage technologies,and numerous IP routing and transport enterprises for many different customers.Charles holds a bachelor’s degree from the University of Central Florida.He is fortunate to have the love and encouragement of his wife,René,and his daughter,Tess,who make life so wonderful. viii 228_VoIP2e_FM.qxd 8/14/02 4:29 PM Page ix Stuart Ruwet (CCNP–WAN Switching,HPOV Certified Consultant, SNIA Level 1) is a Consultant with Callisma.Stuart is a Cisco/StrataCom WAN specialist with broad experience in the telecommunications industry.He has worked with a wide variety of networking technologies and platforms including multiple transmission protocols,and network management systems with an emphasis in ATM and IP.Prior to working with Callisma,Stuart served as a Senior Network Engineer and Manager of Network Engineering for Convergent Communications,where he was responsible for designing and building a nation-wide ATM network. Stuart holds a bachelor’s degree in International Business from the University of Denver.He currently lives in Castle Rock,CO with his wife,Meghan,and daughter,Kyla. Robert Thorstensen (CCNA,CCNA–WAN,CCDA,CCNP,CCDP, CCIP,CSS1,CIPT,BCFP) is a Consultant with Callisma in Denver,CO and has five years experience in the networking industry.Robert has extensive experience with a wide variety of internetworking and optical technologies,protocols,and hardware platforms,with an emphasis on IP telephony,routing,switching,security,and optical networking.Robert’s background includes positions as a second tier NOC Engineer at Rhythms NetConnections,and as a Network Engineer at Internet Communications Corporation.Robert would like to thank his wife,Lisa, and his three daughters,Brittany,Alyssa,and Aimee,for their patience and understanding on the numerous nights and weekends they would rather have been outside at the park instead of “tip-toeing”around the house. Vincent Brian Tillirson is a Consultant with Callisma.Vincent is currently providing technical consulting to a large enterprise banking company in Atlanta,GA.His specialties are in WAN/LAN design,implementation and voice deployments.Vincent has participated in the design and implementation of voice and data networks across the United States, Europe and South America.Vincent holds a bachelor’s of Science degree in Computer Science from North Georgia College and University. ix