DHCP HANDBOOK 2ND EDITION
Ouvrage 9780673323279 : DHCP HANDBOOK 2ND EDITION
The Dynamic Host Configuration Protocol (DHCP) provides a way to
automate and manage the network configurations of devices that use the
TCP/IP protocol suite. Without DHCP, network administrators must
manually enter in IP addresses for each computer and network device and
then manually change that address each time the device is moved to a
different part of the network. The DHCP Handbook, Second Edition is a
complete reference for understanding DHCP, deploying and managing DHCP
services, and debugging problems with DHCP clients and servers. Chapters
devoted to failover, authentication, Windows 2000, DHCPv6, and DHCP/DNS
interaction reflect the recent updates to the standard and issues that
are most pertinent to network planners and administrators. Throughout
the book, the authors are careful to balance conceptual discussions of
DHCP with detailed implementation examples and practical advice.
I. INTRODUCTION TO DHCP.
1. An Introduction to DHCP.
Configuring Devices on a Network. A First Attempt at Automating Device
Configuration. The Benefits of DHCP. Assigning IP Addresses Using DHCP.
Perceived Problems of DHCP. Address Allocation Policies.
2. An Example of DHCP in Operation.
Setting Up the GSI Network. Using DHCP to Configure Computers. Leases on
IP Addresses in DHCP.
3. Configuring the DHCP Server.
Specifying the Basic Network Architecture. Required Configuration
Parameters. Specifying Leases. Other DHCP Options. Extending a Lease and
Moving Between Subnets. Other Configuration Information.
4. Configuring TCP/IP Stacks.
The TCP/IP Protocol Suite. The Physical Layer. The Data Link Layer. The
Internet Layer. The Transport Layer. The Application Layer.
II. DHCP THEORY OF OPERATION.
5. DHCP Client/Server Model.
DHCP Goals and Design Decisions. Related TCP/IP Protocols. The DHCP
Client/Server Architecture.
6. The Format of DHCP Messages.
DHCP Message Format Overview. The Fixed-Format Section. The options
Section. Examples of Message Formats. Design Constraints.
7. Transmitting DHCP Messages.
Using UDP for DHCP. Relay Agents. Reliable Delivery of DHCP Messages.
Other Transmission Methods. Authenticated DHCP Messages.
8. DHCP Message Exchanges.
Client States. Working with Multiple Servers. Other Message Exchanges.
9. DHCP Options.
DHCP-Specific Options. Host Configuration Parameters Options. TCP/IP
Stack Configuration Parameters. Service Parameter Options.
10. Failover Protocol Operation.
Failover Protocol Overview. Lease Handling with Failover. Failover
Operational States. Binding Update Conflicts. Pool Rebalancing. Complex
Failover Configurations.
11. DHCP-DNS Interaction.
The Domain Name System. DHCP and DNS. Dynamic Updates to the DNS
Database. Dynamic Updates and DHCP. How the DHCP Server Updates the DNS.
III. DHCP SERVERS AND CLIENTS.
12. Theory of the Operation of a DHCP Server.
Address Allocation Strategy. Allocation and Renewal in Response to a
DHCPREQUEST Message. DHCP Message Handling. Abandoned Lease Address
Reclamation.
13. The Microsoft DHCP Server.
Installing the Microsoft DHCP Service. Managing DHCP Servers.
Configuring DHCP Servers. Controlling the Windows DHCP Server.
14. The ISC DHCP Server.
Obtaining the ISC DHCP Server. Prerequisites to Operation of the ISC
DHCP Server. Configuring the ISC DHCP Server. Invoking the ISC DHCP
Server. Server Operation.
15. Configuring a DHCP Server.
Configuring a DHCP Server to Be Authoritative. Configuring an Individual
Subnet. Supporting Multiple Network Segments. Configuring Multiple IP
Subnets on Each Network Segment.
16. Client Identification and Fixed-Address Allocation.
Identifying Clients. Static Allocation. Mixing Static and Dynamic
Allocation. Automatic Allocation. Access Control.
17. Setting Up a Reliable DHCP Service.
Determining Your Level of DHCP Service Reliability. Specific Failures in
DHCP Service. Improving Reliability by Using Long Leases. Setting Up a
Secondary DHCP Server. Problems with Setting Up Redundant Servers.
18. Configuring a Failover Server.
Types of Failover Relationships. Setting Up Failover Service for the
First Time. Configuring the ISC DHCP Server to Do Failover. Operating a
Failover Pair. Issues Specific to the ISC DHCP Failover Implementation.
19. Tuning a DHCP Service.
Network Device Configuration and Address Assignment Strategies.
Configuring Lease Lengths. Monitoring the Server.
20. Programmable DHCP Server Customization.
Differentiating Between Clients. Controlling Address Allocation. Client
Class Options. Lease Events. Lease Variables.
21. DHCP Clients.
The Theory of DHCP Client Operation. The Microsoft DHCP Client. The
dhcpcd DHCP Client. The pump DHCP Client. The ISC DHCP Client. The Apple
MacOS X DHCP Client.
22. Setting Up DHCP in a Small Office.
Small Office Network Architectures. IP Address Translation. Running a
DHCP Server and Client on the Same Computer. Running the DHCP Server on
Your Firewall. Problems with DSL Routers. Configuring an Integrated
Router/Server. Configuring a WAN Port. Configuring a LAN Port and Small
Network Services.
23. Updating DNS with DHCP.
Overview of Updating DNS with DHCP. The Motivation for Doing DNS Updates
from DHCP. The Domain Name Update Policy. Name Clashes. DNS Update
Security. Configuring the Servers. DNS Record Removal. Debugging
Problems with DNS Updates.
24. Debugging Problems with DHCP.
The Debugging Process. Connectivity Problems. When the Server Does Not
Respond. Server DHCPNAK Message Behavior. Incorrect Option Values. The
Uniqueness of Client Identifiers. Dual-Boot Client Systems. Duplicate IP
Addresses. When a Client Fails to Get a Reserved IP Address.
25. DHCP for IPv6.
An Introduction to IPv6. The Motivations for DHCPv6. The Design of
DHCPv6.
IV. APPENDIXES.
Appendix A. Microsoft DHCP Server Examples.
Examples 3.1, 3.2, 3.3, and 3.4. Examples 3.5 and 3.6. Example 3.7.
Examples 3.8 and 3.9. Example 3.10. Example 3.11. Examples 12.1 and
12.2. Example 13.1. Examples 14.1 through 14.6. Example 14.7. Example
14.8. Example 14.9. Examples 14.10 and 14.11. Example 14.12. Example
14.13. Example 14.14. Examples 14.15 through 14.17. Examples 15.1 and
15.2. Examples 15.3 through 15.7. Example 15.8. Example 15.9. Example
15.10. Examples 15.11 and 15.12. Example 15.13. Example 15.14. Example
15.15. Example 15.16. Example 15.17. Example 15.18. Example 15.19.
Example 16.1 and 16.2. Example 16.3. Example 16.4. Example 16.5. Example
16.6. Examples 16.7 and 16.8. Examples 16.9, 16.10, and 16.11. Example
17.1 . Example 18.1 through 18.9. Example 19.1. Examples 20.1 through
20.14. Example 22.1. Example 22.2. Example 22.3. Example 22.4. Examples
22.5 through 22.7. Examples in Appendixes.
Appendix B. ISC DHCP Server Configuration File Reference.
How to Use This Appendix. File Organization. The shared-network
Declaration. The subnet Declaration. The range Declaration. The host
Declaration. The pool Declaration. The class Declaration. The subclass
Declaration. The group Declaration. The option space Declaration. The
include Directive. The key Declaration. The zone Declaration. The
failover peer Declaration. Programming Statements. Expressions.
Parameter Statements. Statements That Define Values to Send to Clients.
The option Definition. The Standard DHCP Options.
Appendix C. The DHCP Message Format.
The fixed-format Section. The variable-format Section.
Appendix D. DHCP Options Summary.
Appendix E. Bibliography and Other Resources.
Web Resources for DHCP. RFCs Related to DHCP. Other RFCs of Interest.
Additional Reading.
Appendix F. DHCP Server and Operating System Versions.
Choosing a DHCP Server. ISC DHCP Server Operating System Dependencies.
Appendix G. Glossary.
Index.
Auteur : DROMS
Editeur : HARPER COLLINS
Nombre de pages : 600
Date de publication : 11 2002
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