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IP Address Management

Principles and Practice

Timothy Rooney



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John Wiley & Sons Inc
20 December 2010
This book will be the first covering the subject of IP address management (IPAM). The practice of IPAM includes the application of network management disciplines to IP address space and associated network services, namely DHCP (Dynamic Host Configuration Protocol) and DNS (Domain Name System). The consequence of inaccurately configuring DHCP is that end users may not be able to obtain IP addresses to access the network. Without proper DNS configuration, usability of the network will greatly suffer as the name-to-address lookup process may fail. Imagine having to navigate to a website or send an email or an instant message by IP address instead of by name! It's equally important that these DHCP and DNS configurations be based on a common IP address plan, which maps out the IP address hierarchy, subnets, address pools, and domains.

IPAM applies management disciplines to these core services, including configuration, change control, auditing, reporting and so on, and they are necessary given the absolute requirement for properly managing IP space and DHCP and DNS servers. The linkages among an IP address plan, DHCP server configuration and DNS server configuration are inseparable; a change of an IP address will affect DNS information and perhaps DHCP as well. These functions provide the foundation for today's converged services IP networks, so they need to be managed using a rigorous approach.

Today, there is no single book that covers the management of these linkages and services they provide; IP Address Management Principles and Practice will fill that gap. While several books are available for leading vendors' DHCP and DNS services implementations, few exist for IP address planning, and none exist that unifies these three topics.

To obtain a free copy of the IPAM Configuration Guide please send an email to:
By:   Timothy Rooney
Imprint:   John Wiley & Sons Inc
Country of Publication:   United States
Dimensions:   Height: 241mm,  Width: 158mm,  Spine: 29mm
Weight:   830g
ISBN:   9780470585870
ISBN 10:   0470585870
Series:   IEEE Press Series on Networks and Service Management
Pages:   448
Publication Date:   20 December 2010
Audience:   Professional and scholarly ,  Undergraduate
Format:   Hardback
Publisher's Status:   Unknown
Preface xi Acknowledgments xv Part I IP Addressing 1 The Internet Protocol 3 1.1 Highlights of Internet Protocol History 3 1.2 IP Addressing 7 1.3 Classless Addressing 13 1.4 Special Use Addresses 14 2 Internet Protocol Version 6 (IPv6) 15 2.1 Introduction 15 2.2 IPv6 Address Allocations 21 2.3 IPv6 Address Autoconfiguration 30 2.4 Neighbor Discovery 30 2.5 Reserved Subnet Anycast Addresses 33 2.6 Required Host IPv6 Addresses 34 3 IP Address Allocation 35 3.1 Address Allocation Logic 38 3.2 IPv6 Address Allocation 49 3.3 IPAM Worldwide's IPv6 Allocations 53 3.4 Internet Registries 57 3.5 Multihoming and IP Address Space 62 3.6 Block Allocation and IP Address Management 63 Part II DHCP 4 Dynamic Host Configuration Protocol (DHCP) 67 4.1 Introduction 67 4.2 DHCP Overview 68 4.3 DHCP Servers and Address Assignmen 75 4.4 DHCP Options 78 4.5 Other Means of Dynamic Address Assignment 89 5 DHCP for IPv6 (DHCPv6) 90 5.1 DHCP Comparison: IPv4 Versus IPv6 91 5.2 DHCPv6 Address Assignment 92 5.3 DHCPv6 Prefix Delegation 93 5.4 DHCPv6 Support of Address Autoconfiguration 94 5.5 Device Unique Identifiers 97 5.6 Identity Associations 99 5.7 DHCPv6 Options 99 6 DHCP Applications 109 6.1 Multimedia Device Type Specific Configuration 110 6.2 Broadband Subscriber Provisioning 111 6.3 Related Lease Assignment or Limitation Applications 115 6.4 Preboot Execution Environment Clients 115 7 DHCP Server Deployment Strategies 118 7.1 DHCP Server Platforms 118 7.2 Centralized DHCP Server Deployment 119 7.3 Distributed DHCP Server Deployment 120 7.4 Server Deployment Design Considerations 122 7.5 DHCP Deployment on Edge Devices 125 8 DHCP and Network Access Security 127 8.1 Network Access Control 127 8.2 Alternative Access Control Approaches 132 8.3 Securing DHCP 137 Part III DNS 9 The Domain Name System (DNS) Protocol 143 9.1 DNS Overview-Domains and Resolution 143 9.2 Name Resolution 145 9.3 Zones and Domains 148 9.4 Resolver Configuration 159 9.5 DNS Message Format 161 10 DNS Applications and Resource Records 176 10.1 Introduction 176 10.2 Name-Address Lookup Applications 178 10.3 Email and Antispam Management 191 10.4 Security Applications 205 10.5 Experimental Name-Address Lookup Records 217 10.6 Resource Record Summary 218 11 DNS Server Deployment Strategies 223 11.1 General Deployment Guidelines 224 11.2 General Deployment Building Blocks 224 11.3 External-External Category 226 11.4 External-Internal Category 231 11.5 Internal-Internal Category 232 11.6 Internal-External Category 237 11.7 Cross-Role Category 243 11.8 Putting it All Together 253 12 Securing DNS (Part I) 254 12.1 DNS Vulnerabilities 254 12.2 Mitigation Approaches 258 12.3 Non-DNSSEC Security Records 259 13 Securing DNS (Part II): DNSSEC 264 13.1 Digital Signatures 265 13.2 DNSSEC Overview 266 13.3 Configuring DNSSEC 268 13.4 The DNSSEC Resolution Process 290 13.5 Key Rollover 297 Part IV IPAM Integration 14 IP Address Management Practices 305 14.1 FCAPS Summary 306 14.2 Common IP Management Tasks 307 14.3 Configuration Management 307 14.4 Fault Management 324 14.5 Accounting Management 334 14.6 Performance Management 338 14.7 Security Management 340 14.8 Disaster Recovery/Business Continuity 340 14.9 ITIL Process Mappings 342 14.10 Conclusion 346 15 IPv6 Deployment and IPv4 Coexistence 347 15.1 Introduction 347 15.2 Dual-Stack Approach 349 15.3 Tunneling Approaches 353 15.4 Translation Approaches 368 15.5 Application Migration 374 15.6 Planning the IPv6 Deployment Process 374 Bibliography 383 Glossary 392 RFC index 394 Index 408

TIMOTHY ROONEY has worked with IP technologies in various capacities over the last sixteen years, including systems engineering and development. He has an extensive background not only in IP, but also in telecommunications, wireless services, and software, having worked at Bell Laboratories, AT&T Wireless, Lucent Technologies, and BT. In his current role as Director of Product Management with BT Diamond IP, Rooney is responsible for the overall BT Diamond IP product life cycle, managing product features and releases, as well as supporting sales and marketing.

Reviews for IP Address Management: Principles and Practice

The book aims to be a must-to-have reference for every network engineer. Whenever one encounters a networking issue (not only basic), an answer to the question or the information in which RFC the answer is located can be found. (IEEE Communications Magazine, 1 August 2011) This guide to Internet Protocol address management (IPAM) presents a practical, technical overview of each part of the IP environment and provides advice on best practices for creating an effective, integrated management plan ... the work includes numerous illustrations and code examples and would be appropriate for advanced computer science students as well as network administrators and designers. Rooney is an IPAM expert and senior director for an IPAM consulting firm. (Booknews, 1 April 2011) Today, there is no single book that covers the management of these linkages and services they provide; IP Address Management Principles and Practice will fill that gap. While several books are available for leading vendors' DHCP and DNS services implementations, few exist for IP address planning, and none exist that unifies these three topics. (Security @ ITBusiness, 28 February 2011)

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