dhcp configuration step by step

7/28/2019 DHCP Configuration Step by Step

1/20

"Dynamic Host Configuration Protocol (DHCP) is an IP standard designed to reduce the

complexity of administering IP address configurations." - Microsoft's definition. A

DHCP server would be set up with the appropriate settings for a given network. Suchsettings would include a set of fundamental parameters such as the gateway, DNS, subnet

masks, and a range of IP addresses. Using DHCP on a network means administrators

don't need to configure these settings individually for each client on the network. TheDHCP would automatically distribute them to the clients itself.

The DHCP server assigns a client an IP address taken from a predefined scope for a given

amount of time. If an IP address is required for longer than the lease has been set for, the

client must request an extension before the lease expires. If the client has not requested anextension on the lease time, the IP address will be considered free and can be assigned to

another client. If the user wishes to change IP address then they can do so by typing

"ipconfig /release", followed by "ipconfig /renew" in the command prompt. This willremove the current IP address and request a new one. Reservations can be defined on the

DHCP server to allow certain clients to have their own IP address (this will be discussed

a little later on). Addresses can be reserved for a MAC address or a host name so theseclients will have a fixed IP address that is configured automatically. Most Internet

Service Providers use DHCP to assign new IP addresses to client computers when a

customer connects to the internet - this simplifies things at user level.

The above diagram diplays a simple structure consisting of a DHCP server and a number

of client computers on a network.

The DHCP Server itself contains an IP Address Database which holds all the IP addresses

available for distribution. If the client (a member of the network with a Windows 2000Professional/XP operating system, for example) has "obtain an IP address automatically"

enabled in TCP/IP settings, then it is able to receive an IP address from the DHCP server.

Setting up a DHCP Server

This will serve as a step-by-step guide on how to setup a DHCP server.

Installing the DHCP server is made quite easy in Windows 2003. By using the "Manage

your server" wizard, you are able to enter the details you require and have the wizard set

the basics for you. Open to "Manage your server" wizard, select the DHCP server optionfor the list of server roles and press Next.

You will be asked to enter the name and description of your scope.


2/20

Scope: A scope is a collection of IP addresses for computers on a subnet that use DHCP.

The next window will ask you to define the range of addresses that the scope will

distribute across the network and the subnet mask for the IP address. Enter the

appropriate details and click next.


3/20

You are shown a window in which you must add any exclusions to the range of IPaddresses you specified in the previous window. If for example, the IP address 10.0.0.150

is that of the company router then you won't want the DHCP server to be able to

distribute that address as well. In this example I have excluded a range of IP addresses,10.0.0.100 to 10.0.0.110, and a single address, 10.0.0.150. In this case, eleven IP's will be

reserved and not distributed amongst the network clients.


4/20

It is now time to set the lease duration for how long a client can use an IP addressassigned to it from this scope. It is recommended to add longer leases for a fixed network

(in the office for example) and shorter leases for remote connections or laptop computers.

In this example I have set a lease duration of twelve hours since the network clientswould be a fixed desktop computer in a local office and the usual working time is eight

hours.


5/20

You are given a choice of whether or not you wish to configure the DHCP options for thescope now or later. If you choose Yes then the upcoming screenshots will be of use to

you. Choosing No will allow you to configure these options at a later stage.


6/20

The router, or gateway, IP address may be entered in next. The client computers will then

know which router to use.

In the following window, the DNS and domain name settings can be entered. The DNS

server IP address will be distributed by the DHCP server and given to the client.


7/20

If you have WINS setup then here is where to enter the IP Address of the WINS server.You can just input the server name into the appropriate box and press "Resolve" to allow

it to find the IP address itself.


8/20

The last step is to activate the scope - just press next when you see the window below.

The DHCP server will not work unless you do this.

The DHCP server has now been installed with the basic settings in place. The next stage

is to configure it to the needs of your network structure.

Configuring a DHCP server

Hereunder is a simple explanation of how to configure a DHCP server.

The address pool displays a list of IP ranges assigned for distribution and IP address

exclusions. You are able to add an exclusion by right clicking the address pool text on the

left hand side of the mmc window and selecting "new exclusion range". This will bringup a window (as seen below) which will allow you to enter an address range to be added.

Entering only the start IP will add a single IP address.


9/20

DHCP servers permit you to reserve an IP address for a client. This means that the

specific network client will have the same IP for as long as you wanted it to. To do this

you will have to know the physical address (MAC) of each network card. Enter thereservation name, desired IP address, MAC address and description - choose whether you

want to support DHCP or BOOTP and press add. The new reservation will be added tothe list. As an example, I have reserved an IP address (10.0.0.115) for a client computercalled Andrew.


10/20

If you right click scope options and press "configure options" you will be taken to a

window in which you can configure more servers and their parameters. These settingswill be distributed by the DHCP server along with the IP address. Server options act as a

default for all the scopes in the DHCP server. However, scope options take preference

over server options.

In my opinion, the DHCP server in Windows 2003 is excellent! It has been improvedfrom the Windows 2000 version and is classified as essential for large networks. Imagine

having to configure each and every client manually - it would take up a lot of time and

require far more troubleshooting if a problem was to arise. Before touching any settingsrelated to DHCP, it is best to make a plan of your network and think about the range of

IPs to use for the computers.

DHCP server role: Configuring a DHCP serverUpdated: January 21, 2005

DHCP server role: Configuring a DHCP server

DHCP servers centrally manage IP addresses and related information and provide it to

clients automatically. This allows you to configure client network settings at a server,


11/20

instead of configuring them on each client computer. If you want this computer to

distribute IP addresses to clients, then configure this computer as a DHCP server.

This topic explains the basic steps that you must follow to configure a DHCP server.When you have finished setting up a basic DHCP server, you can complete additional

configuration tasks, depending on how you want to use the DHCP server.

This topic covers:

Before you begin

Configuring your DHCP server

Next steps: Completing additional tasks

Before you begin

Before you configure your computer as a DHCP server, verify that:

You are familiar with DHCP concepts such as scopes, leases, and options. For moreinformation, see DHCP terminology .

The operating system is configured correctly. In the Windows Server 2003 family,

DHCP depends on the appropriate configuration of the operating system and its services.

If you have a new installation of a Windows Server 2003 operating system, then you canuse the default service settings. No further action is necessary. If you upgraded to a

Windows Server 2003 operating system, or if you want to confirm that your services areconfigured correctly for best performance and security, then verify your service settings

using the table inDefault settings for services .

This computer has a static IP address. For more information, see Configure TCP/IP for

static addressing .

All existing disk volumes use the NTFS file system. FAT32 volumes are not secure, andthey do not support file and folder compression, disk quotas, file encryption, or

individual file permissions.

Windows Firewall is enabled. For more information, see Help: Turn Windows Firewallon with no exceptions .

The Security Configuration Wizard is installed and enabled. For information about the

Security Configuration wizard, seeSecurity Configuration Wizard Overview .

When you add the DHCP server role, you create one scope that defines the range of IPaddresses that the DHCP server allocates to the clients on one subnet. You need to create
http://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#dhcpsrvbeforehttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#dhcpsrvconfighttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#dhcpsrvcompletionhttp://technet2.microsoft.com/WindowsServer/en/library/aa185164-5909-43b5-89e9-4dcc0eacad721033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/2b1dc6cf-2e34-4681-9aa6-8d0ffba2d3e31033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/2b1dc6cf-2e34-4681-9aa6-8d0ffba2d3e31033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/e6030f4f-1659-45bf-9a13-15366f7d51961033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/e6030f4f-1659-45bf-9a13-15366f7d51961033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/f516f33a-929a-4250-8052-580cf70b22eb1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/f516f33a-929a-4250-8052-580cf70b22eb1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/38f0693d-59eb-45ca-980d-31fe03eb54df1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/38f0693d-59eb-45ca-980d-31fe03eb54df1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#dhcpsrvbeforehttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#dhcpsrvconfighttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#dhcpsrvcompletionhttp://technet2.microsoft.com/WindowsServer/en/library/aa185164-5909-43b5-89e9-4dcc0eacad721033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/2b1dc6cf-2e34-4681-9aa6-8d0ffba2d3e31033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/e6030f4f-1659-45bf-9a13-15366f7d51961033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/e6030f4f-1659-45bf-9a13-15366f7d51961033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/f516f33a-929a-4250-8052-580cf70b22eb1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/f516f33a-929a-4250-8052-580cf70b22eb1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/38f0693d-59eb-45ca-980d-31fe03eb54df1033.mspx


12/20

one scope for each subnet that has clients that you want to manage using DHCP. The

following table lists the information that you need to know before you add the DHCP

server role, so that you can create the first scope. You need to collect the sameinformation for each additional scope.

Before adding a DHCP serverrole Comments

Review DHCP security issues. Security issues might affect the way you deploy DHCPservers. For more information about DHCP security best

practices, see Security information for DHCP .

Identify the range of IPaddresses that the DHCP

server should allocate to the

clients.

Use the entire range of consecutive IP addresses that makeup the local IP subnet. In many cases, a private address

range is the best choice. For more information and a list of

all the IP address ranges approved for use on private

networks, see RFC 1918, "Address Allocation for PrivateInternets", at theInternet Engineering Task Force Web

site . Web addresses can change, so you might be

unable to connect to the Web site or sites mentioned here.

Determine the correct subnetmask for the clients.

When the DHCP server leases an IP address to a client,the server can specify additional configuration

information, including the subnet mask.

Identify any IP addresses that

the DHCP server should notallocate to clients.

For example, a server or a network-connected printer

often has a static IP address, and the DHCP server mustnot offer this IP address to clients.

Decide the duration of the

lease of the IP addresses.

The default is eight days. In general, the duration of the

lease should be equal to the average time that the clients

on this subnet are active. For example, the ideal durationmay be longer than eight days if the clients are desktop

computers that are rarely turned off, or it may be shorter

than eight days if the clients are mobile devices thatfrequently leave the network or are moved between

subnets.

(Optional) Identify the IP

address of the router (defaultgateway) that the clients

should use to communicate

with clients on other subnets.

When the DHCP server leases an IP address to a client,

the server can specify additional configurationinformation, including the IP address of the router.

(Optional) Identify the nameof the DNS domain of the

When the DHCP server leases an IP address to a client,the server can specify additional configuration
http://technet2.microsoft.com/WindowsServer/en/library/77d015fc-67fa-4ce9-86dc-3f22c1c535b61033.mspxhttp://go.microsoft.com/fwlink/?LinkId=8453http://go.microsoft.com/fwlink/?LinkId=8453http://go.microsoft.com/fwlink/?LinkId=8453http://technet2.microsoft.com/WindowsServer/en/library/fcfb3f7d-b209-4bb8-a1ca-f5259b6d57191033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/fcfb3f7d-b209-4bb8-a1ca-f5259b6d57191033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/77d015fc-67fa-4ce9-86dc-3f22c1c535b61033.mspxhttp://go.microsoft.com/fwlink/?LinkId=8453http://go.microsoft.com/fwlink/?LinkId=8453http://technet2.microsoft.com/WindowsServer/en/library/fcfb3f7d-b209-4bb8-a1ca-f5259b6d57191033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/fcfb3f7d-b209-4bb8-a1ca-f5259b6d57191033.mspx


13/20

Before adding a DHCP server

roleComments

clients. information, including the name of the DNS domain towhich the clients belong.


address of the DNS server that

the clients should use.


the server can specify additional configuration

information, including the IP address of the DNS serverthat the clients should contact to resolve the name of

another computer.


address of the WINS serverthat the clients should use.


the server can specify additional configurationinformation, including the IP address of the WINS server

that the clients should contact to resolve the NetBIOS

name of another computer.Top of page

Configuring your DHCP server

To configure a DHCP server, start the Configure Your Server Wizard by doing either of

the following:

From Manage Your Server, clickAdd or remove a role. By default, Manage YourServer starts automatically when you log on. To open Manage Your Server, click Start,

clickControl Panel, double-clickAdministrative Tools, and then double-clickManage Your Server.

To open the Configure Your Server Wizard, clickStart, clickControl Panel, double-clickAdministrative Tools, and then double-clickConfigure Your Server Wizard.

On the Server Role page, clickDHCP server, and then clickNext.

This section covers:

Summary of Selections

Using the New Scope Wizard

Completing the Configure Your Server Wizard

Removing the DHCP server role

Top of page
http://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#dhcpsrvsummaryhttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#dhcpnewscopewizhttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#dhcpsrvcompletingcyshttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#dhcpsrvremovehttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#dhcpsrvsummaryhttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#dhcpnewscopewizhttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#dhcpsrvcompletingcyshttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#dhcpsrvremovehttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#top


14/20

Summary of Selections

On the Summary of Selections page, view and confirm the options that you have

selected. If you selected DHCP Server on the previous page, the following appears:

Install DHCP Server

Run the New Scope Wizard to configure a new DHCP

scope

To apply the selections shown on the Summary of Selections page, clickNext. After

you clickNext, the Configuring Components page of the Windows ComponentsWizard appears, and then closes automatically. You cannot clickBackorNext on this

page.

Top of page

Using the New Scope Wizard

After you clickNext, the Configure Your Server Wizard installs the DHCP Serverservice, and then starts the New Scope Wizard to collect information and add the DHCP

server role. If you cancel the New Scope Wizard, the DHCP Server service remains

installed, but it cannot distribute IP addresses to clients until you create a scope. If youchoose to create a scope later, you can do so using the DHCP console.

This section describes the following steps in the New Scope Wizard:

Scope Name

IP Address Range

Add Exclusions

Lease Duration

Configure DHCP Options

Router (Default Gateway)

Domain Name and DNS Servers

WINS Servers

Activate Scope
http://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopenamehttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopeiphttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopeexclusionshttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopedurationhttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopeoptionshttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scoperouterhttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopednshttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopewinshttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopeactivatehttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopenamehttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopeiphttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopeexclusionshttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopedurationhttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopeoptionshttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scoperouterhttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopednshttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopewinshttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopeactivate


15/20

Completing the New Scope Wizard

Top of page

Scope Name

On the Scope Name page, in Name, type a name for the scope that you are creating. In

Description, type a description (this is optional). Most networks have several subnets,

and each subnet requires its own scope, so a DHCP server usually manages multiplescopes. Choose a name and description that help you distinguish between the various

scopes.

After you finish, clickNext.

Top of page

IP Address Range

On the IP Address Range page, define the range of IP addresses in this scope by typing

the IP addresses at the start and the end of that range. The wizard uses the IP addresses

that you type to determine the correct subnet mask. The correct subnet mask

automatically appears in Subnet mask.

In the unusual case where the clients on this subnet need to use a subnet mask other than

the one that the wizard provides, you must type it in Subnet mask, or type the number of

bits of the subnet mask in Length.


Top of page

Add Exclusions

On the Add Exclusions page, you can define the IP addresses that the DHCP server

should not allocate to clients. For example, the DHCP server itself has a static IP address

that must not be allocated to clients. The same is true of the default gateway and ofvarious network devices, such as network-connected printers. You must exclude these IP

addresses so that the DHCP server does not allocate them to clients.

It is recommended that you exclude more IP addresses than you currently need because itis easier to truncate an exclusion range than it is to expand it. Exclude IP addresses from

the beginning or the end of the range of possible IP addresses, not from the middle. For

example, if the range of IP addresses on this subnet is from 10.0.0.1 to 10.0.0.255, and

you want to exclude ten IP addresses, then define the exclusion range as either of thefollowing:
http://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopecompletinghttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopecompletinghttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#top


16/20

10.0.0.1 to 10.0.0.10

10.0.0.245 to 10.0.0.255

For each range of IP addresses that you want to exclude, type the IP address at thebeginning of the range in Start IP address, type the IP address at the end of the range in

End IP address, and then clickAdd.

This step eases client administration, but it is optional. If you leave all fields of this page

blank and clickNext, clients will still be able to obtain IP addresses from the DHCP

server.


Top of page

Lease Duration

On the Lease Duration page, you can define how long a client can use an IP address

from this scope.

The DHCP server leases IP addresses to its clients. Each lease has an expiration date andtime. The client must renew the lease if it is going to continue to use that IP address. The

default duration of the lease is eight days.


blank and clickNext, clients will still be able to obtain IP addresses from the DHCPserver.


Top of page

Configure DHCP Options

On the Configure DHCP Options page, you can specify whether to configure DHCP

options.

It is recommended that you accept the default, Yes, I want to configure these optionsnow, and clickNext, even if you do not want to configure the options. If you choose No,

I will configure these options later, then the following occurs:

The New Scope Wizard creates the scope but does not activate it, and you must use the
http://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#top


17/20

DHCP console to activate the scope in order for clients to receive IP addresses from this

scope. For information about how to activate a scope using the DHCP console, see

Activate a scope .

You will not see the next four wizard pages described below. Continue reading atCompleting the New Scope Wizard .

Top of page

Router (Default Gateway)

On the Router (Default Gateway) page, you can specify the routers (also known as

default gateways) that clients should use. You can add as many IP addresses as there are

routers on this subnet.




Top of page

Domain Name and DNS Servers

On the Domain Name and DNS Servers page, you can specify the name of the domain

that clients on this subnet should use when they resolve DNS names.

You can also specify the DNS server that clients should use to resolve DNS names. You

can type the IP address of that DNS server, or you can type its name and clickResolve,and the wizard will determine the IP address for you. You can add several DNS servers.




Top of page

WINS Servers

On the WINS Servers page, you can specify the WINS server that clients should

communicate with to register and resolve NetBIOS names. You can type the IP address
http://technet2.microsoft.com/WindowsServer/en/library/cfbe1fc9-4d46-4536-a05d-67c8730a83521033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopecompletinghttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/cfbe1fc9-4d46-4536-a05d-67c8730a83521033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#scopecompletinghttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#top


18/20

of that WINS server, or you can type its name and clickResolve, and the wizard will

determine the IP address for you. You can add several WINS servers.

This step eases client administration, but it is optional. If you leave all fields of this pageblank and clickNext, clients will still be able to obtain IP addresses from the DHCP

server.


Top of page

Activate Scope

On the Activate Scope page, you can activate the scope or choose to activate it later. In

most cases, you should accept the default and activate the scope now. If you choose to

activate the scope later, you can do so using the DHCP console. You must activate the

scope to allow clients on the subnet of this scope to obtain IP addresses from the DHCPserver.


Top of page

Completing the New Scope Wizard

On the Completing the New Scope Wizard page, you can clickBackto change any of

the settings. To apply your selections, clickFinish.

Top of page

Completing the Configure Your Server Wizard

After you complete the New Scope Wizard, the Configure Your Server Wizard displaysthe This Server is Now a DHCP Server page. To review all of the changes made to your

server by the Configure Your Server Wizard or to ensure that a new role was installed

successfully, clickConfigure Your Server log. The Configure Your Server Wizard logis located at systemroot\Debug\Configure Your Server.log. To close the Configure Your

Server Wizard, clickFinish.

To verify that your server is secure and has the most recent updates, do the following:

1

.Run Windows Update. For more information, see Windows Update .
http://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/e77ca20b-52d3-414d-a119-18bbe53c66781033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/e77ca20b-52d3-414d-a119-18bbe53c66781033.mspx


19/20

2

.

Run the Security Configuration Wizard. For more information, seeSecurity

Configuration Wizard Overview .Top of page

Removing the DHCP server role

If you need to reconfigure your server for a different role, you can remove existing server

roles. If you remove the DHCP server role, you must reconfigure clients to obtain IPaddresses from another DHCP server. Also, if you want clients to continue using the IP

addresses distributed by this server, you must configure another DHCP server to

distribute those addresses.

To remove the DHCP server role, restart the Configure Your Server Wizard by doingeither of the following:

From Manage Your Server, clickAdd or remove a role. By default, Manage Your

Server starts automatically when you log on. To open Manage Your Server, click Start,

clickControl Panel, double-clickAdministrative Tools, and then double-click

Manage Your Server.

To open the Configure Your Server Wizard, clickStart, clickControl Panel, double-

clickAdministrative Tools, and then double-clickConfigure Your Server Wizard.

On the Server Role page, clickDHCP server, and then clickNext. On the Role

Removal Confirmation page, review the items listed underSummary, select the

Remove the DHCP server role check box, and then clickNext. After you clickNext,the Configuring Components page of the Windows Components Wizard appears, and

then closes automatically. You cannot clickBackorNext on this page. On the DHCP

Server Role Removed page, clickFinish.

Top of page

Next steps: Completing additional tasks

After you complete the Configure Your Server Wizard, the computer is ready for use as a

basic DHCP server that can manage IP addresses and related information. Up to thispoint, you have installed the DHCP Server service and created one scope that manages IP

addresses and related information for the clients on one subnet. If you want to manage

clients on other subnets, you must create additional scopes. If you have not activated thescope, then you must activate the scope to allow clients on the subnet of this scope to

obtain IP addresses from the DHCP server.
http://technet2.microsoft.com/WindowsServer/en/library/38f0693d-59eb-45ca-980d-31fe03eb54df1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/38f0693d-59eb-45ca-980d-31fe03eb54df1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/38f0693d-59eb-45ca-980d-31fe03eb54df1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/38f0693d-59eb-45ca-980d-31fe03eb54df1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/38f0693d-59eb-45ca-980d-31fe03eb54df1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#top


20/20

When you complete the Configure Your Server Wizard, it automatically installs the

DHCP console, which you use to manage your DHCP server. To open DHCP, click

Start, clickSettings, clickControl Panel, double-clickAdministrative Tools, and thendouble-clickDHCP.

The following table lists some of the additional tasks that you might want to perform onyour DHCP server.

Task Purpose of task Reference

Activate existingscopes.

To activate scopes that you created with theNew Scope Wizard that are not currently

active.

Activate a scope

Authorize the DHCP

server in Active

Directory.

To detect unauthorized DHCP servers and

prevent them from starting or running on

your network.

Authorizing DHCP

servers

Add support for a

routed network.

To enable the DHCP server to act as a relay

agent, which forwards DHCP messagesbetween subnets.

Configure the

DHCP Relay Agent

Assign a server-based

scope option.

To simplify administration by setting default

values that all new scopes will inherit.

Assign a server-

based option

Change or view scopeproperties.

To change or view the properties of anexisting scope.

Change or viewscope properties

Create new scopes. To create scopes that support clients on

other subnets.

Create a new scope

Add a clientreservation.

To define an IP address that the DHCPserver should not allocate to a client because

another client is permanently using it.

Add a client

reservation

Configure ports to

allow remoteadministration.

To manage the DHCP server from other

computers on the network.

Windows Firewall

Settings

Top of page
http://technet2.microsoft.com/WindowsServer/en/library/cfbe1fc9-4d46-4536-a05d-67c8730a83521033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/9a4157c4-3c2f-4871-9ffe-7d405781f2cf1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/9a4157c4-3c2f-4871-9ffe-7d405781f2cf1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/929704d8-0e1c-4b8d-b424-16c312ad1edf1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/929704d8-0e1c-4b8d-b424-16c312ad1edf1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/977fd357-9e3c-4d49-9c80-d5a9bb07cf591033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/977fd357-9e3c-4d49-9c80-d5a9bb07cf591033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/977fd357-9e3c-4d49-9c80-d5a9bb07cf591033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/376c8f22-de3c-4b32-ac3d-09a0655e7d991033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/376c8f22-de3c-4b32-ac3d-09a0655e7d991033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/f425442a-9843-4c6e-8bf2-49788eaf48e71033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/78171281-13f4-4446-8ee2-431cb79ae6df1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/78171281-13f4-4446-8ee2-431cb79ae6df1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/78171281-13f4-4446-8ee2-431cb79ae6df1033.mspxhttp://go.microsoft.com/fwlink/?LinkId=38651http://go.microsoft.com/fwlink/?LinkId=38651http://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#tophttp://technet2.microsoft.com/WindowsServer/en/library/cfbe1fc9-4d46-4536-a05d-67c8730a83521033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/9a4157c4-3c2f-4871-9ffe-7d405781f2cf1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/9a4157c4-3c2f-4871-9ffe-7d405781f2cf1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/929704d8-0e1c-4b8d-b424-16c312ad1edf1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/929704d8-0e1c-4b8d-b424-16c312ad1edf1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/977fd357-9e3c-4d49-9c80-d5a9bb07cf591033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/977fd357-9e3c-4d49-9c80-d5a9bb07cf591033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/376c8f22-de3c-4b32-ac3d-09a0655e7d991033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/376c8f22-de3c-4b32-ac3d-09a0655e7d991033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/f425442a-9843-4c6e-8bf2-49788eaf48e71033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/78171281-13f4-4446-8ee2-431cb79ae6df1033.mspxhttp://technet2.microsoft.com/WindowsServer/en/library/78171281-13f4-4446-8ee2-431cb79ae6df1033.mspxhttp://go.microsoft.com/fwlink/?LinkId=38651http://go.microsoft.com/fwlink/?LinkId=38651http://technet2.microsoft.com/WindowsServer/en/library/10112946-1204-4ff4-b52c-599c303135d11033.mspx#top

dhcp configuration step by step

Documents