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Set-IpamSubnet

Modifies an existing IP subnet in IPAM.

Networking / Security · Risk: High · Documentation Verified

Last verified: 2026-10-26

Microsoft IpamServer reference: Modifies an existing IP subnet in IPAM. 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.

Set-IpamSubnet -NetworkId <String[]> [-NetworkType <VirtualizationType[]>] [-AddressSpace <String[]>]
 [-NewNetworkId <String>] [-NewNetworkType <VirtualizationType>] [-NewAddressSpace <String>] [-Name <String>]
 [-Owner <String>] [-Description <String>] [-VlanId <UInt16[]>] [-VmmLogicalNetwork <String>]
 [-NetworkSite <String>] [-VirtualSubnetId <Int32>] [-AddCustomConfiguration <String>]
 [-RemoveCustomConfiguration <String>] [-CimSession <CimSession[]>] [-ThrottleLimit <Int32>] [-AsJob]
 [-PassThru] [-WhatIf] [-Confirm] [<CommonParameters>]

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Required permissions

Use an account with the target resource permissions documented for Set-IpamSubnet. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.

Supported environments

Windows / IpamServer · Windows Server 2025 documentation; feature/module prerequisites apply

Parameters

-AddCustomConfiguration: Specifies semi-colon (;) separated name/value pairs. This parameter specifies custom metadata that are associated with the address space.
-AddressSpace: Specifies an array of address spaces to which this IP address range belongs. If you do not specify a value, the cmdlet modifies matching ranges from all address spaces.
-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.
-Confirm: Prompts you for confirmation before running the cmdlet.
-Description: Specifies a description for the subnet.
-InputObject (required): Specifies the input to this cmdlet. You can use this parameter, or you can pipe the input to this cmdlet.
-Name: Specifies the name for the subnet.
-NetworkId (required): Specifies the network and the prefix for the given subnet. Specify the network ID in Classless Interdomain Routing (CIDR) notation in the format Network/Prefix.
-NetworkSite: Specifies a network site. A network site is associated with a logical network and forms an abstraction of the physical network. A logical network can contain many network sites. This property is inherited by all ranges and addresses associated with the given subnet.
-NetworkType: Specifies an array of network types for the subnets to modify. The acceptable values for this parameter are: - Provider -- Customer -- NonVirtualized If you do not specify a value, all matching IP subnets of network type Provider, Customer, and NonVirtualized will be modified.
-NewAddressSpace: Specifies the name of a new address space for the IP subnet. A subnet of network type NonVirtualized can only belong to the Default address space. A subnet of network type Provider can belong to either the Default address space or a Provider address space. A subnet of network type Customer can only belong to a Customer address space.
-NewNetworkId: Specifies the name of a new value of network ID for this subnet.
-NewNetworkType: Specifies the name of a new value of network type for this address. You can change the network type from NonVirtualized to Provider, or from Provider to NonVirtualized. However, you cannot convert network type from NonVirtualized or Provider to Customer.
-Owner: Specifies an owner for the subnet.
-PassThru: Returns an object representing the item with which you are working. By default, this cmdlet does not generate any output.
-RemoveCustomConfiguration: Specifies a list of custom metadata fields to modify. The list is a string of name-value pairs, separated by semicolons (;).
-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.
-VirtualSubnetId: Specifies a virtual subnet ID.
-VlanId: Specifies an array of unique identifiers for virtual local area networks (VLAN).
-VmmLogicalNetwork: Specifies the abstraction of a physical network that describes a particular function in your environment such as backend or frontend.
-WhatIf: Shows what would happen if the cmdlet runs. The cmdlet is not run.

Prerequisites

Windows with the IpamServer 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.

Examples

Example 2: Modify a network ID

Set-IpamSubnet -NetworkId 10.10.1.0/16 -NetworkType NonVirtualized -NewNetworkId 10.10.1.0/17

This command modifies the NonVirtualized network ID of a subnet. Source: Microsoft, CC BY 4.0; transcript prompt/output removed. This example was not executed.

Sources

https://github.com/MicrosoftDocs/windows-powershell-docs/blob/b7645dd8c687139b28e845119da30ec670526507/docset/winserver2025-ps/IpamServer/Set-IpamSubnet.md

https://learn.microsoft.com/powershell/module/ipamserver/set-ipamsubnet?view=windowsserver2025-ps

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