i Table of Contents P1/Vet MCSE Tr Gde: TCP/IP 747-2 Lori 12.01.97 FM LP#3 MCSE TRAINING GUIDE TCP/IP Emmett Dulaney john white Sherwood Lawrence raymond williams Robert Scrimger kevin wolford Anthony tilke Untitled-27 12/3/97, 8:31 AM1 ii MCSE Training Guide: TCP/IP P1/Vet MCSE Tr Gde: TCP/IP 747-2 Lori 12.01.97 FM LP#3 Acquisitions Editors Julie Fairweather, Nancy Maragioglio, Steve Weiss Development Editor Rob Tidrow Project Editor John Sleeva Copy Editors Margo Catts, Cliff Shubs, Sharon Wilkey Technical Editor Lance Skok Software Product Developer Steve Flatt Software Acquisitions and Development Dustin Sullivan Team Coordinator Stacey Beheler Manufacturing Coordinator Brook Farling Book Designer Glenn Larsen Cover Designer Jay Corpus Cover Production Casey Price Director of Production Larry Klein Production Suprervisor Victor Peterson Graphics Image Specialists Sadie Crawford, Wil Cruz Production Analysts Dan Harris Erich J. Richter Production Team Lori Cliburn, Pamela Woolf Indexer Tim Wright MCSE Training Guide: TCP/IP By Emmett Dulaney, Sherwood Lawrence, Robert Scrimger, Anthony Tilke, John White, Raymond Williams, and Kevin Wolford Published by: New Riders Publishing 201 West 103rd Street Indianapolis, IN 46290 USA All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechani- cal, including photocopying, recording, or by any information storage and retrieval system, without written permission from the publisher, except for the inclusion of brief quotations in a review. © 1998 by New Riders Publishing Printed in the United States of America 1 2 3 4 5 6 7 8 9 0 Library of Congress Cataloging-in-Publication Data ***CIP data available upon request*** ISBN: 1-56205-747-2 Warning and Disclaimer This book is designed to provide information about TCP/IP. Every effort has been made to make this book as complete and as accurate as possible, but no warranty or fitness is implied. The information is provided on an “as is” basis. The authors and New Riders Publishing shall have neither liability nor responsibil- ity to any person or entity with respect to any loss or damages arising from the information contained in this book or from the use of the discs or programs that may accompany it. New Riders is an independent entity from Microsoft Corporation, and not affiliated with Microsoft Corporation in any manner. This publication may be used in assisting students to prepare for a Microsoft Certified Professional Exam. Neither Microsoft Corpo- ration, its designated review ICV, nor New Riders warrants that use of this publication will ensure passing the relevant Exam. Microsoft is either a registered trademark or trademark of Microsoft Corporation in the United Stated and/or other coun- tries. Publisher David Dwyer Executive Editor Mary Foote Managing Editor Sarah Kearns Untitled-27 12/3/97, 8:31 AM2 iii Table of Contents P1/Vet MCSE Tr Gde: TCP/IP 747-2 Lori 12.01.97 FM LP#3 About the Authors Emmett Dulaney is a consultant for D. S. Technical Solutions in central Indiana. An MCSE, CNE, OS/2 Engineer, and LAN Server Engineer, he has taught continuing education courses for Indiana University-Purdue University of Fort Wayne for more than seven years, and has authored or coauthored over a dozen books. He can be reached at edulaney@iquest.net. Shey Lawrence When Sherwood Lawrence is not tracing TCP/IP packets and troubleshooting connectivity issues, he spends his time tracing down his free time and troubleshooting why he has so little of it left. He contends that the undeniable proof that black holes exist in the universe sucking up space and time sits squarely in the middle of his desk, bathing him in for medical therapy can be sent to the author by contacting him through his company’s Web site at www.atlasconsulting.com. For almost 20 years, Robert Scrimger has done everything with computers except design the boards (yet) and sell them. In the last eight years his primary endeavor has been training, starting with many different applications and moving in the last few years to work exclusively with network operating systems and client/ server applications. Rob is a Microsoft Certified Systems Engineer on both 3.51 and 4.0 and a Microsoft Certified Trainer. Anthony Tilke is a network consultant and engineer. He is both Microsoft- and Novell-certified with MCSE and MCNE designa- tions to his credit. After administering his first network in 1987, Anthony started to change his career from an economic analyst to a network engineer. With a transitional period as a statistical pro- grammer and graduate student, Anthony dedicated himself to a career in networking by 1992. His career has included the design, implementation, and management of large networks and messag- ing systems for public sector clients. More recently, Anthony has been a senior network engineer for a Micrsoft Solution Provider, and Novell Platinum reseller in the Pacific Northwest. A 1985 magna cum laude graduate from Pace University in New York, Anthony has written software reviews for PC magazine. He can be reached at anthony@compuserve.com. Untitled-27 12/3/97, 8:31 AM3 iv MCSE Training Guide: TCP/IP P1/Vet MCSE Tr Gde: TCP/IP 747-2 Lori 12.01.97 FM LP#3 John White currently works as a senior systems administrator. He is heavily involved in the implementation and support of Windows NT systems worldwide. John was a UNIX and NetWare systems administrator before joining the world of Windows NT. Prior to becoming a systems administrator, he was a biochemistry major at Trent University. He now lives in Ottawa, Canada with his wife Viviana. Raymond Williams is a Microsoft Certified Trainer (MCT) and consultant. He currently works for GSE Erudite as a network in- structor. Raymond is a Microsoft Certified Systems Engineer as well as a Certified NetWare Instructor and Certified NetWare En- gineer. He has worked as a systems analyst and design engineer for many companies during his five years experience. He thour- oughly enjoys the computer industry and what it has to offer, and finds pleasure in sharing the information with others. Kevin B. Wolford is an MCSE, MCT, Master CNE, and CNI. He has had several careers, including technical writer, pension actu- ary, and trainer. He is the lead Windows NT trainer for GSE Eru- dite Software in Salt Lake City, Utah. You alos can see Kevin in training videos produced by Keystone Learning Systems of Provo, Utah. Kevin enjoys explaining complex, technical things in a sim- ple manner. Untitled-27 12/3/97, 8:31 AM4 v Table of Contents P1/Vet MCSE Tr Gde: TCP/IP 747-2 Lori 12.01.97 FM LP#3 Trademark Acknowledgments All terms mentioned in this book that are known to be trademarks or service marks have been appropriately capitalized. New Riders Publishing cannot attest to the accuracy of this information. Use of a term in this book should not be regarded as affecting the validity of any trademark or service mark. Microsoft is a registered trademark of Microsoft Corporation in the United States and other counties. Untitled-27 12/3/97, 8:31 AM5 vi MCSE Training Guide: TCP/IP P1/Vet MCSE Tr Gde: TCP/IP 747-2 Lori 12.01.97 FM LP#3 Contents at a Glance Introduction 1 1. Introduction to TCP/IP 9 2. Architectural Overview of the TCP/IP Suite 27 3. IP Addressing 87 4. Subnetting 107 5. Implementing IP Routing 137 6. Dynamic Host Configuration Protocol 193 7. NetBIOS Over TCP/IP 231 8. Implementing Windows Internet Name Service 273 9. Administering a WINS Environment 295 10. IP Internetwork Browsing and Domain Functions 335 11. Host Name Resolution 371 12. Domain Name System 393 13. Implementing Microsoft DNS Servers 427 14. Connectivity in Heterogeneous Environments 467 15. Implementing the Microsoft SNMP Service 499 16. Troubleshooting Microsoft TCP/IP 527 17. TCP/IP and Remote Access Service 579 A. Overview of the Certification Process 623 B. Study Tips 633 C. What’s on the CD-ROM 637 D. All About TestPrep 639 Index 641 Untitled-27 12/3/97, 8:31 AM6 viii MCSE Training Guide: TCP/IP P1/Vet MCSE Tr Gde: TCP/IP 747-2 Lori 12.01.97 FM LP#3 Table of Contents Introduction 1 Who Should Read This Book 1 How This Book Helps You 2 Understanding What the “Internetworking with Microsoft TCP/IP on Microsoft Windows NT 4.0” Exam (#70-59) Covers 3 Hardware and Software Needed 4 Tips for the Exam 5 New Riders Publishing 6 1 Introduction to TCP/IP 9 The Exam 10 Three Exam Preps in One Book 10 What Is on the Test? 12 TCP/IP Architecture 12 TCP/IP Routing and Name Resolution 13 Installing TCP/IP on Windows NT Computers 14 The Dynamic Host Configuration Protocol (DHCP) 14 The Windows Internet Name Service (WINS) 15 The Domain Name System 16 Browsing in a TCP/IP Internetwork 17 Implementing the Microsoft SNMP Service 18 Performance Tuning and Optimization 18 Troubleshooting TCP/IP 19 How the Internetworking TCP/IP Test Differs from Other Microsoft Exams 19 Installing TCP/IP 23 Services 24 2 Architectural Overview of the TCP/IP Suite 27 Introduction 29 Introductory Concepts—Network Basics 30 The Components of a Network 30 The Physical Address 34 Network Topologies 37 The OSI Model 44 Introduction to TCP/IP 49 The Four Layers of TCP/IP 51 RFCs 78 Exercises 80 Review Questions 81 Review Answers 85 Untitled-27 12/3/97, 8:31 AM8 ix Table of Contents P1/Vet MCSE Tr Gde: TCP/IP 747-2 Lori 12.01.97 FM LP#3 3 IP Addressing 87 Overview 89 TCP/IP Addressing Methods 90 IP Addresses Defined 91 Conversion Between Decimal and Binary Numbers 92 Network ID and Host ID 93 IP Address Classes Defined 93 Reasons for Using Specific Address Classes 94 Classes Defined 95 IP Addressing Guidelines 98 Assigning Network IDs 99 Assigning Host IDs 100 Addressing with IP Version 6 101 Review Questions 102 Review Answers 105 4 Subnetting 107 Introduction 109 The Purpose of Subnet Masks 111 Using the Subnet Mask 114 Understanding Default Subnet Masks 116 Subdividing a Network 117 Subnetting 118 Step 1: Determine the Number of Network IDs Required 118 Step 2: Determine the Number of Host IDs per Subnet Required 119 Step 3: Define the Subnet Mask 120 Step 4: Determine the Network IDs to Use 122 Step 5: Determine the Host IDs to Use 126 Using the Network Subnetting Tables 127 Exercises 131 Review Questions 134 Review Answers 136 5 Implementing IP Routing 137 Introduction 139 Network Review 140 Repeaters, Bridges, and Switches 141 Looking at Broadcast Protocols 149 Understanding Routing 155 Dead Gateway Detection 158 Static and Dynamic Routers 162 Static and Dynamic Router Integration 178 Building a Multihomed Router 180 Exercises 183 Review Questions 184 Review Answers 190 Untitled-27 12/3/97, 8:31 AM9 x MCSE Training Guide: TCP/IP P1/Vet MCSE Tr Gde: TCP/IP 747-2 Lori 12.01.97 FM LP#3 6 Dynamic Host Configuration Protocol 193 Understanding DHCP 195 What DHCP Servers Can Do 197 Limitations of DHCP 198 Planning a DHCP Implementation 199 Network Requirements 199 Installing the DHCP Relay Agent 200 Client Requirements 201 Using Multiple DHCP Servers 202 Using Scope Options 204 How DHCP Works 205 DHCPACK Phase 205 DHCP Lease Renewal 206 Installing the DHCP Server Service 207 Configuring the DHCP Server 207 Creating Scopes 208 Scope Options 210 Address Reservations 211 DHCP Clients 212 Using the IPCONFIG Utility 214 Displaying Information 214 Renewing a Lease 216 Releasing a Lease 216 Compacting the DHCP Database 217 Backing Up the DHCP Database 218 Restoring a Corrupt DHCP Database 219 Automatic Restoration 219 Registry RestoreFlag 219 Copying from the Backup Directory 220 Exercises 221 Review Questions 225 Review Answers 228 7 NetBIOS Over TCP/IP 231 Defining NetBIOS 233 NetBIOS Over TCP/IP (NBT) 234 NetBIOS Services 236 Name Management 237 Name Resolution 240 Order of Resolution 252 nbtstat 258 Exercises 261 Review Questions 265 Review Answers 269 Untitled-27 12/3/97, 8:31 AM10 xi Table of Contents P1/Vet MCSE Tr Gde: TCP/IP 747-2 Lori 12.01.97 FM LP#3 8 Implementing Windows Internet Name Service 273 The Windows Internet Name Service 275 How WINS Works 276 Name Registration 276 Name Renewal 277 Name Release 278 Name Resolution 278 Implementation Considerations 280 WINS Server Considerations 280 WINS Client Considerations 283 Implementing WINS 283 Implementing a WINS Server 283 Configuring WINS Clients 284 Integrating WINS with DHCP 284 Review Questions 286 Review Answers 293 9 Administering a WINS Environment 295 Installing a WINS Server 297 WINS Clients 298 Configuring WINS to be Used by Non-WINS Clients 298 Registering Non-WINS Clients with Static Entries 299 Adding Entries to WINS from an LMHOSTS File 300 Resolving Names Through a WINS Server for Non-WINS Clients 300 Configuring a Client for WINS 302 Replication 303 The Replication Process 306 Using the WINS Manager 306 Backing Up the WINS Database 310 Restoring the WINS Database 310 Files Used for WINS 311 Compacting the WINS Database 311 Exercises 312 Review Questions 325 Review Answers 331 10 IP Internetwork Browsing and Domain Functions 335 Browsing in Windows NT 337 Browsing Tools 338 System Roles 339 The Direct Approach 340 Browsing Roles 342 Filling Roles 343 Untitled-27 12/3/97, 8:31 AM11 [...]... studying for the MCSE exam but are looking for a singlevolume reference on TCP/IP implementation Untitled-28 1 P1/Vet MCSE Tr Gde: TCP/IP 12/3/97, 8:32 AM 74 7-2 Lori 12.01.97 Intro LP#4 1 2 MCSE Training Guide: TCP/IP How This Book Helps You This book takes you on a self-guided tour of all the areas covered by the MCSE TCP/IP exam and teaches you the specific skills you need to achieve your MCSE certification... Publishing at (317) 81 7-7 448 You also can send e-mail to New Riders at the following Internet address: slayton@.mcp.com NRP is an imprint of Macmillan Computer Publishing To obtain a catalog or information, or to purchase any Macmillan Computer Publishing book, call (800) 42 8-5 331 Thank you for selecting MCSE Training Guide: TCP/IP ! Untitled-28 7 P1/Vet MCSE Tr Gde: TCP/IP 12/3/97, 8:32 AM 74 7-2 Lori 12.01.97... Microsoft Windows NT computers Untitled-29 9 B01/V01 MCSE Tr Gde: TCP/IP 12/3/97, 8:33 AM 74 7-2 Lori 11.26.97 CH 01 LP#3 9 10 MCSE Training Guide: TCP/IP The Exam The “Internetworking with Microsoft TCP/IP on Microsoft Windows NT 4.0” exam (Exam 7 0-0 59) is one of the most crucial exams in the MCSE track Although Microsoft does not require the exam, almost all MCSE candidates are choosing it as one... Mouse or equivalent pointing device Two-speed (or faster) CD-ROM drive (optional) Network Interface Card (NIC) Presence on an existing network, or use of a 2-port (or more) mini-port hub to create a test network MS-DOS 5.0 or 6.x and Microsoft Windows for Workgroups 3.x preinstalled Microsoft Windows 95 (floppy version) Microsoft Windows NT Server (CD-ROM version) It is somewhat easier to get... 639 Scoring 640 Index Untitled-27 15 P1/Vet MCSE Tr Gde: TCP/IP 641 12/3/97, 8:31 AM 74 7-2 Lori 12.01.97 FM LP#3 xv Introduction Introduction MCSE Training Guide: TCP/IP is designed for advanced end-users, service technicians, and network administrators who are considering certification as a Microsoft Certified Systems Engineer (MCSE) , Microsoft Certified Product (MCP) Specialist... The CD-ROM also contains a sample test engine that will give you an accurate idea of what the test is really like You’ll also get a chance to practice for the certification exams using the test engine on the accompanying CD-ROM The questions on the CD-ROM provide a more thorough and comprehensive look at what your certification exams really are like Untitled-28 2 P1/Vet MCSE Tr Gde: TCP/IP 74 7-2 Lori... TCP/IP on Microsoft Windows NT 4.0” Exam (#7 0-5 9) Covers The “Internetworking with Microsoft TCP/IP on Microsoft Windows NT® 4.0” exam (#7 0-5 9) covers five main topic areas, arranged in accordance with test objectives On the CD-ROM that comes with this book, you’ll find document lpr7 0-5 9.doc, which is the exam preparation guide prepared by Microsoft lpr7 0-5 9.doc describes what you will be tested on... suggests ways to prepare for the exam The exam objectives, listed by topic area, are covered in the following sections Untitled-28 3 P1/Vet MCSE Tr Gde: TCP/IP 12/3/97, 8:32 AM 74 7-2 Lori 12.01.97 Intro LP#4 3 4 MCSE Training Guide: TCP/IP Hardware and Software Needed As a self-paced study guide, much of the book expects you to use Windows NT Server and follow along through the exercises while you learn... the exercises require only a single stand-alone Windows NT computer running TCP/IP Server The computer should meet the following criteria: Computer on the Microsoft Hardware Compatibility List 486DX2 66-Mhz (or better) processor for Windows NT Server 16 MB of RAM (minimum) for Windows NT Server 340-MB (or larger) hard disk for Windows NT Server 3.5-inch 1.44-MB floppy drive VGA (or Super VGA) video... Read This Book This book is designed to help advanced users, service technicians, and network administrators who are working for MCSE certification prepare for the MCSE “Internetworking with Microsoft TCP/ IP on Microsoft Windows NT 4.0” exam (#7 0-5 9) This book is your one-stop-shop Everything you need to know to pass the exam is in here, and Microsoft has certified it as study material You do not need . 7 8 9 0 Library of Congress Cataloging-in-Publication Data ***CIP data available upon request*** ISBN: 1-5 620 5-7 4 7-2 Warning and Disclaimer This book is. the CD-ROM 637 D. All About TestPrep 639 Index 641 Untitled-27 12/3/97, 8:31 AM6 viii MCSE Training Guide: TCP/IP P1/Vet MCSE Tr Gde: TCP/IP 74 7-2 Lori