Adds a MAC address filter to the DHCP server service.
Networking / Security · Risk: High · Documentation Verified
Last verified: 2026-10-26
Microsoft DhcpServer reference: Adds a MAC address filter to the DHCP server service. 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-DhcpServerv4Filter. 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.
-ComputerName
Specifies the DNS name, or IPv4 or IPv6 address, of the target computer that runs the DHCP server service.
-Confirm
Prompts you for confirmation before running the cmdlet.
-Description
Specifies the description string for the MAC address filter being added.
-Force
Specifies that, if one or more of the MAC addresses are already present in the allow or deny list, the matching MAC addresses are deleted and the new entries created. This parameter is useful in the case where the MAC address specified is already present in one list, such as the allow list, and the same MAC address now has to be added to the other list, such as the deny list. If this parameter is not specified, the cmdlet fails if the specified MAC address is already present in any of the lists.
-List (required)
Specifies the list to which one or more MAC addresses are to be added. The acceptable values for this parameter are: Allow or Deny.
-MacAddress (required)
Specifies one or more MAC addresses which are to be added to the MAC address filter list.
-PassThru
Returns an object representing the item with which you are working. By default, this cmdlet does not generate any output.
-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.
-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 the specified client identified by the MAC address to the allowed list of MAC address filters. Source: Microsoft, CC BY 4.0; transcript prompt/output removed. This example was not executed.