Reserves an IPv4 address in the scope for a client.
Networking / Security · Risk: High · Documentation Verified
Last verified: 2026-10-26
Microsoft DhcpServer reference: Reserves an IPv4 address in the scope for a client. The syntax and selected example below are adapted from the pinned Windows Server 2025 reference. Module availability, target configuration and delegated permissions determine whether it can run in your environment. Documentation and parameter text: Microsoft, CC BY 4.0; formatting adapted by Cmdlet World. No execution testing is claimed.
Use an account with the target resource permissions documented for Add-DhcpServerv4Reservation. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.
Supported environments
Windows / DhcpServer · Windows Server 2025 documentation; feature/module prerequisites apply
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.
-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 (required)
Specifies the unique identifier (ID) for the client. For Windows clients, the MAC address is used as the client ID.
-ComputerName
Specifies the DNS name, or IPv4 or IPv6 address, of the target computer that runs the Dynamic Host Configuration Protocol (DHCP) server service.
-Confirm
Prompts you for confirmation before running the cmdlet.
-Description
Specifies the description for the reservation to created.
-IPAddress (required)
Specifies the IPv4 address to reserve for the client.
-Name
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.
-PassThru
Returns an object representing the item with which you are working. By default, this cmdlet does not generate any output.
-ScopeId (required)
Specifies the identifier (ID) of the scope in which the reservation is created.
-ThrottleLimit
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
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.
-WhatIf
Shows what would happen if the cmdlet runs. The cmdlet is not run.
Prerequisites
Windows with the DhcpServer module and the Windows feature or management tools that provide it. Confirm target connectivity and version compatibility using the linked Microsoft reference.
Security considerations
This cmdlet changes system state. Review every target and parameter in the official reference, test outside production, and prepare an appropriate backup or rollback. Do not execute the example automatically.
This example adds a reserved IP address for the client identified by the specified client ID. Source: Microsoft, CC BY 4.0; transcript prompt/output removed. This example was not executed.