Networking / Security · Risk: High · Documentation Verified
Last verified: 2026-10-26
Microsoft NetNat reference: Modifies settings for NAT objects. 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 Set-NetNat. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.
Supported environments
Windows / NetNat · 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.
-Confirm
Prompts you for confirmation before running the cmdlet.
-IcmpQueryTimeout
Specifies the length of the time-out period, in seconds, for an ICMP query session.
-InputObject (required)
Specifies the input to this cmdlet. You can use this parameter, or you can pipe the input to this cmdlet.
-Name (required)
Specifies an array of names of NAT objects.
-PassThru
Returns an object representing the item with which you are working. By default, this cmdlet does not generate any output.
-TcpEstablishedConnectionTimeout
Specifies the length of the time-out period, in seconds, for established TCP connections. Use the *TcpTransientConnectionTimeout* parameter to modify the time-out period for transient TCP connections.
-TcpFilteringBehavior
Specifies filtering behavior for TCP connections. The acceptable values for this parameter are: - EndpointIndependentFiltering - AddressDependentFiltering The default value is EndpointIndependentFiltering.
-TcpTransientConnectionTimeout
Specifies the length of the time-out period, in seconds, for transient TCP connections. Use the *TcpEstablishedConnectionTimeout* parameter to modify the time-out period for established TCP connections.
-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.
-UdpFilteringBehavior
Specifies filtering behavior for UDP sessions. The acceptable values for this parameter are: - EndpointIndependentFiltering - AddressDependentFiltering The default value is EndpointIndependentFiltering.
-UdpIdleSessionTimeout
Specifies the length of the time-out period, in seconds, for a UDP session.
-UdpInboundRefresh
Indicates whether a packet from the external network refreshes an existing UDP session. If you specify a value of $True for this parameter, either an inbound packet or an outbound packet refreshes an existing UDP session. If you specify a value of $False, only an outbound packet refreshes a UDP session. The default value is $False.
-WhatIf
Shows what would happen if the cmdlet runs. The cmdlet is not run.
Prerequisites
Windows with the NetNat 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 command modifies a NAT object named TSQATenant. The command specifies a value of $True for the *UdpInboundRefresh* parameter, and, therefore, NAT refreshes UDP sessions for both inbound and outbound packets. The command changes TCP filtering behavior to address dependent filtering. Source: Microsoft, CC BY 4.0; transcript prompt/output removed. This example was not executed.