Add-DhcpServerv4Reservation

Add-DhcpServerv4Reservation

Reserves the specified 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 will be leased only to the client identified by the specific client identifier (ID).

Parameters

-AsJob

-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.

-ClientId<String>

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

-ComputerName<String>

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

-Description<String>

Specifies the description for the reservation being created.

-IPAddress<IPAddress>

Specifies the IPv4 address to be reserved for the client.

-Name<String>

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

-PassThru

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

-ScopeId<IPAddress>

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

-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.

-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.

-Confirm

Prompts you for confirmation before running the cmdlet.

-WhatIf

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

<CommonParameters>

This cmdlet supports the common parameters: -Verbose, -Debug, -ErrorAction, -ErrorVariable, -OutBuffer, and -OutVariable. For more information, see    about_CommonParameters (https://go.microsoft.com/fwlink/p/?LinkID=113216).

Inputs

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

• Microsoft.Management.Infrastructure.CimInstance#root/Microsoft/Windows/DHCP/DhcpServerv4Lease

  The Microsoft.Management.Infrastructure.CimInstance object is a wrapper class that displays Windows Management Instrumentation (WMI) objects. The path after the pound sign (#) provides the namespace and class name for the underlying WMI object.

• Microsoft.Management.Infrastructure.CimInstance#root/Microsoft/Windows/DHCP/DhcpServerv4Reservation

  The Microsoft.Management.Infrastructure.CimInstance object is a wrapper class that displays Windows Management Instrumentation (WMI) objects. The path after the pound sign (#) provides the namespace and class name for the underlying WMI object.

• Microsoft.Management.Infrastructure.CimInstance#root/Microsoft/Windows/DHCP/DhcpServerv4Scope

  The Microsoft.Management.Infrastructure.CimInstance object is a wrapper class that displays Windows Management Instrumentation (WMI) objects. The path after the pound sign (#) provides the namespace and class name for the underlying WMI object.

Outputs

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

• Microsoft.Management.Infrastructure.CimInstance#root/Microsoft/Windows/DHCP/DhcpServerv4Reservation

  The Microsoft.Management.Infrastructure.CimInstance object is a wrapper class that displays Windows Management Instrumentation (WMI) objects. The path after the pound sign (#) provides the namespace and class name for the underlying WMI object.

Examples

EXAMPLE 1

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

This example adds all of the reservations in the file named Reservations.csv to the DHCP server service running on the computer named dhcpserver.contoso.com. The Import-Csv cmdlet returns the objects with reservation fields and pipes the objects to this cmdlet, which adds these reservations to the DHCP server services. The file 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

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

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 fetches a free IP address in the scope, 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"

Related topics

Get-DhcpServerv4FreeIPAddress

Get-DhcpServerv4Lease

Get-DhcpServerv4Reservation

Remove-DhcpServerv4Reservation

Set-DhcpServerv4Reservation

Import-Csv