Add-DhcpServerv4Reservation

Add-DhcpServerv4Reservation

Reserves an IPv4 address in the scope for a client.

Syntax

Parameter Set: Add0
Add-DhcpServerv4Reservation [-ScopeId] <IPAddress> [-IPAddress] <IPAddress> [-ClientId] <String> [-AsJob] [-CimSession <CimSession[]> ] [-ComputerName <String> ] [-Description <String> ] [-Name <String> ] [-PassThru] [-ThrottleLimit <Int32> ] [-Type <String> ] [-Confirm] [-WhatIf] [ <CommonParameters>]




Detailed Description

The Add-DhcpServerv4Reservation cmdlet reserves the specified IPv4 address in the scope for a client. Once reserved, the IP address is leased only to the client identified by the specific client identifier (ID).

Parameters

-AsJob

Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete. The cmdlet immediately returns an object that represents the job and then displays the command prompt. You can continue to work in the session while the job completes. To manage the job, use the *-Job cmdlets. To get the job results, use the Receive-Job cmdlet. For more information about Windows PowerShell® background jobs, see about_Jobs.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-CimSession<CimSession[]>

Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession or Get-CimSession cmdlet. The default is the current session on the local computer.


Aliases

Session

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-ClientId<String>

Specifies the unique identifier (ID) for the client. For Windows clients, the MAC address is used as the client ID.


Aliases

none

Required?

true

Position?

4

Default Value

none

Accept Pipeline Input?

True (ByPropertyName)

Accept Wildcard Characters?

false

-ComputerName<String>

Specifies the DNS name, or IPv4 or IPv6 address, of the target computer that runs the Dynamic Host Configuration Protocol (DHCP) server service.


Aliases

Cn,ReservationServer

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-Description<String>

Specifies the description for the reservation to created.


Aliases

ReservationDescription

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

True (ByPropertyName)

Accept Wildcard Characters?

false

-IPAddress<IPAddress>

Specifies the IPv4 address to reserve for the client.


Aliases

ReservedIP

Required?

true

Position?

3

Default Value

none

Accept Pipeline Input?

True (ByPropertyName)

Accept Wildcard Characters?

false

-Name<String>

Specifies the name of the reservation created. This parameter value can be the host name of the client or a name to identify the reservation on the DHCP server service.


Aliases

HostName,ReservationName

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

True (ByPropertyName)

Accept Wildcard Characters?

false

-PassThru

Returns an object representing the item with which you are working. By default, this cmdlet does not generate any output.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-ScopeId<IPAddress>

Specifies the identifier (ID) of the scope in which the reservation is created.


Aliases

ReservationScopeID

Required?

true

Position?

2

Default Value

none

Accept Pipeline Input?

True (ByPropertyName)

Accept Wildcard Characters?

false

-ThrottleLimit<Int32>

Specifies the maximum number of concurrent operations that can be established to run the cmdlet. If this parameter is omitted or a value of 0 is entered, then Windows PowerShell® calculates an optimum throttle limit for the cmdlet based on the number of CIM cmdlets that are running on the computer. The throttle limit applies only to the current cmdlet, not to the session or to the computer.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-Type<String>

Specifies the type of client request for which this IP address is reserved. The acceptable values for this parameter are: DHCP, BootP, or Both. The default value is Both.


Aliases

ReservationType

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

True (ByPropertyName)

Accept Wildcard Characters?

false

-Confirm

Prompts you for confirmation before running the cmdlet.


Required?

false

Position?

named

Default Value

false

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-WhatIf

Shows what would happen if the cmdlet runs. The cmdlet is not run.


Required?

false

Position?

named

Default Value

false

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

<CommonParameters>

This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see    about_CommonParameters.

Inputs

The input type is the type of the objects that you can pipe to the cmdlet.

Outputs

The output type is the type of the objects that the cmdlet emits.

Examples

Example 1: Add a reserved IP address

This example adds a reserved IP address for the client identified by the specified client ID.


PS C:\> Add-DhcpServerv4Reservation -ScopeId 10.10.10.0 -IPAddress 10.10.10.8 -ClientId "F0-DE-F1-7A-00-5E" -Description "Reservation for Printer"

Example 2: Add reservations from a file

This example adds all of the reservations in the file that is named Reservations.csv to the DHCP server service that runs on the computer named dhcpserver.contoso.com. The Import-Csv cmdlet returns the objects that have reservation fields and pipes the objects to this cmdlet, which adds these reservations to the DHCP server services. The file that is named Reservations.csv should contain the reservations in the following comma-separated values (CSV) format:

ScopeId,IPAddress,Name,ClientId,Description
10.10.10.0,10.10.10.10,Computer1,1a-1b-1c-1d-1e-1f,Reserved for Computer1
20.20.20.0,20.20.20.11,Computer2,2a-2b-2c-2d-2e-2f,Reserved for Computer2
30.30.30.0,30.30.30.12,Computer3,3a-3b-3c-3d-3e-3f,Reserved for Computer3


PS C:\> Import-Csv –Path "Reservations.csv" | Add-DhcpServerv4Reservation -ComputerName "dhcpserver.contoso.com"

Example 3: Convert a lease to a reservation

This example converts one of the leases into a reservation. The Get-DhcpServerv4Lease cmdlet returns the IP address lease object and pipes the object to this cmdlet, which creates the reservation with the IP address and client ID in the lease object.


PS C:\> Get-DhcpServerv4Lease -ComputerName "dhcpserver.contoso.com" -IPAddress 10.10.10.11 | Add-DhcpServerv4Reservation -ComputerName "dhcpserver.contoso.com"

Example 4: Create a reservation in a scope

This example creates a reservation for the client identified by the specified client ID from any of the free IP addresses in the scope 10.10.10.0. The Get-DhcpServerv4FreeIPAddress cmdlet gets a free IP address in the scope, and then this cmdlet reserves an address for the specified client ID.


PS C:\> $FreeIP = Get-DhcpServerv4FreeIPAddress -ComputerName "dhcpserver.contoso.com" -ScopeId 10.10.10.0
PS C:\> Add-DhcpServerv4Reservation -ComputerName "dhcpserver.contoso.com" -ScopeId 10.10.10.0 -IPAddress $FreeIP -ClientId "F0-DE-F1-7A-00-5E" -Description "Reservation for Printer"

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