Microsoft KB Archive/301187

= HOW TO: Install and Configure a DHCP Server in a Workgroup in Windows 2000 =

PSS ID Number: 301187

Article Last Modified on 10/29/2003

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The information in this article applies to:


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server

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This article was previously published under Q301187



IN THIS TASK

 * SUMMARY
 * ** Installing the DHCP Service
 * *** To Install the DHCP Service on an Existing Server
 * Configuring the DHCP Service
 * *** To Create a New Scope
 * Troubleshooting
 * *** Clients Cannot Obtain an IP Address
 * The DHCP Server Is Unavailable



SUMMARY
This step-by-step guide describes how to configure a new Windows 2000-based Dynamic Host Configuration Protocol (DHCP) server on a standalone server to provide centralized management of IP addresses and other TCP/IP configuration settings for the client computers on a network.

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Installing the DHCP Service
Before you can configure the DHCP service, you must install it on the server. DHCP is not installed by default during a typical installation of Windows 2000 Server or Windows 2000 Advanced Server. You can install DHCP either during the initial installation of Windows 2000 or after the initial installation is finished.

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To Install the DHCP Service on an Existing Server

 * 1) Click Start, point to Settings, and then click Control Panel.
 * 2) Double-click Add/Remove Programs, and then click Add/Remove Windows Components.
 * 3) In the Windows Components Wizard, in the Components list, click Networking Services, and then click Details.
 * 4) In the Networking Services dialog box, select the Dynamic Host Configuration Protocol (DHCP) check box if it is not already selected, and then click OK.
 * 5) In the Windows Components Wizard, click Next to start Windows 2000 Setup. Insert the Windows 2000 CD-ROM into the CD-ROM or DVD-ROM drive if you are prompted. Setup copies the DHCP server and tool files to your computer.
 * 6) When Setup is completed, click Finish.

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Configuring the DHCP Service
After you have installed the DHCP service and started it, you must create a scope, which is a range of valid IP addresses that are available for lease to the DHCP client computers on the network. Each DHCP server in your environment should have at least one scope that does not overlap with any other DHCP server scope in your environment. In Windows 2000, DHCP servers in an Active Directory-based domain environment must be authorized to prevent rogue DHCP servers from coming online. Windows 2000 shuts down any unauthorized DHCP servers that it finds.

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To Create a New Scope

 * 1) Click Start, point to Programs, point to Administrative Tools, and then click DHCP.
 * 2) In the console tree, right-click the DHCP server on which you want to create the new DHCP scope, and then click New Scope.
 * 3) In the New Scope Wizard, click Next, and then type a name and description for the scope. This can be any name that you want, but it should be descriptive enough so that you can identify the purpose of the scope on your network (for example, you could use a name such as &quot;Administration Building Client Addresses&quot;).
 * 4) Type the range of addresses that can be leased as part of this scope (for example, use a range of IP addresses from a starting IP address of 192.168.100.1 to an ending address of 192.168.100.100). Because these addresses are given to clients, they must all be valid addresses for your network and not currently be in use. If you want to use a different subnet mask, type the new subnet mask. Click Next.
 * 5) Type any IP addresses that you want to exclude from the range that you entered. This includes any addresses in the above range that may have already been statically assigned to various computers in your organization. Click Next.
 * 6) Type the number of days, hours, and minutes before an IP address lease from this scope expires. This determines how long a client can hold a leased address without renewing it. Click Next, and then click Yes, I want to configure these options now to extend the wizard to include settings for the most common DHCP options. Click Next.
 * 7) Type the IP address for the default gateway that should be used by clients that obtain an IP address from this scope. Click Add to place the default gateway address in the list, and then click Next.
 * 8) If you are using Domain Name System (DNS) servers on your network, type your organization's domain name in the Parent domain box. Type the name of your DNS server, and then click Resolve to ensure that your DHCP server can contact the DNS server and determine its address. Click Add to include that server in the list of DNS servers that are assigned to the DHCP clients. Click Next.
 * 9) Click Yes, I want to activate this scope now to activate the scope and allow clients to obtain leases from it, and then click Next.
 * 10) Click Finish.

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Troubleshooting
The following sections describe how to troubleshoot some of the issues that you may have when you try to install and configure a Windows 2000-based DHCP server in a workgroup.

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Clients Cannot Obtain an IP Address
If a DHCP client does not have a configured IP address, this typically indicates that the client was not able to contact a DHCP server. This can be caused by a network problem, or if the DHCP server is unavailable. If the DHCP server started and other clients can obtain valid addresses, verify that the client has a valid network connection and that all the related client hardware devices (including cables and network adapters) are working properly.

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The DHCP Server Is Unavailable
If a DHCP server does not provide leased addresses to clients, it is often because the DHCP service did not start. If this is the case, the server may not be authorized to operate on the network. If you were previously able to start the DHCP service, but it has since stopped, use Event Viewer to check the System log for any entries that may explain the cause.

To restart the DHCP service:
 * 1) Click Start, and then click Run.
 * 2) Type cmd, and then press ENTER.
 * 3) Type net start dhcpserver, and then press ENTER.

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Keywords: kbhowto kbHOWTOmaster KB301187

Technology: kbwin2000AdvServ kbwin2000AdvServSearch kbwin2000Search kbwin2000Serv kbwin2000ServSearch kbWinAdvServSearch

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