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Remove-DhcpServerv4Lease

Brian Lich|Last Updated: 3/27/2017

SYNOPSIS

Deletes IPv4 address lease records from the DHCP server service.

SYNTAX

IPAddress (Default)

Remove-DhcpServerv4Lease [-PassThru] [-ComputerName <String>] -IPAddress <IPAddress[]>
 [-CimSession <CimSession[]>] [-ThrottleLimit <Int32>] [-AsJob] [-WhatIf] [-Confirm] [<CommonParameters>]

ScopeId

Remove-DhcpServerv4Lease [-PassThru] [-ComputerName <String>] [-ScopeId] <IPAddress>
 [-CimSession <CimSession[]>] [-ThrottleLimit <Int32>] [-AsJob] [-WhatIf] [-Confirm] [<CommonParameters>]

ClientId

Remove-DhcpServerv4Lease [-PassThru] [-ComputerName <String>] [-ScopeId] <IPAddress> [-ClientId] <String[]>
 [-CimSession <CimSession[]>] [-ThrottleLimit <Int32>] [-AsJob] [-WhatIf] [-Confirm] [<CommonParameters>]

BadLeases

Remove-DhcpServerv4Lease [-PassThru] [-ComputerName <String>] [-BadLeases] [[-ScopeId] <IPAddress>]
 [-CimSession <CimSession[]>] [-ThrottleLimit <Int32>] [-AsJob] [-WhatIf] [-Confirm] [<CommonParameters>]

DESCRIPTION

The Remove-DhcpServerv4Lease cmdlet deletes one or more IPv4 lease records from the Dynamic Host Configuration Protocol (DHCP) server service.

If you specify the ScopeId parameter, all of the leases for the specified scope are deleted.

If you specify the IPAddress parameter, the leases for clients identified by one or more specified IP addresses are deleted. If you specify the ClientId and the ScopeId parameters, the lease for the specified client identifier (ID) from the specified scope is deleted.

If you specify the BadLeases and the ScopeId parameters, this cmdlet removes all of the bad lease records for the specified scope.

If you specify the BadLeases parameter without the ScopeId parameter, this cmdlet removes all of the bad leases from all of the scopes on the DHCP server service.

EXAMPLES

Example 1: Delete leases in a scope

PS C:\> Remove-DhcpServerv4Lease -ComputerName "dhcpserver.contoso.com" -ScopeId 10.10.10.0

This example deletes all of the IPv4 address leases in the scope 10.10.10.0 from the DHCP server service that runs on the computer named dhcpserver.contoso.com.

Example 2: Delete leases for multiple addresses

PS C:\> Remove-DhcpServerv4Lease -ComputerName "dhcpserver.contoso.com" -IPAddress 10.10.10.10,20.20.20.20

This example deletes the IPv4 address leases for 10.10.10.10 and 10.20.20.20 from the DHCP server service that runs on the computer named dhcpserver.contoso.com.

Example 3: Delete leases for specified clients

PS C:\> Remove-DhcpServerv4Lease -ComputerName "dhcpserver.contoso.com" -ScopeId 10.10.10.0 -ClientId "F0-DE-F1-7A-00-5E","00-24-D7-C5-25-B0"

This example deletes the IPv4 address leases from the DHCPv4 scope 10.10.10.0 for the clients identified by the client IDs F0-DE-F1-7A-00-5E and 00-24-D7-C5-25-B0.

Example 4: Delete declined leases in a scope

PS C:\> Remove-DhcpServerv4Lease -ComputerName "dhcpserver.contoso.com" -ScopeId 10.10.10.0 -BadLeases

This example deletes all of the bad, or declined, IPv4 address leases in the scope 10.10.10.0 from the DHCP server service that runs on the computer named dhcpserver.contoso.com.

Example 5: Delete declined leases by using the pipeline

PS C:\> Get-DhcpServerv4Scope -ComputerName "dhcpserver.contoso.com" | Get-DhcpServerv4Lease -ComputerName "dhcpserver.contoso.com" -BadLeases | Remove-DhcpServerv4Lease -ComputerName "dhcpserver.contoso.com" -BadLeases

This example deletes all of the bad, or declined, IPv4 address leases from all of the scopes on the DHCP server service that runs on the computer named dhcpserver.contoso.com. The Get-DhcpServerv4Scope cmdlet returns all of the scope objects and the scope objects are piped into the Get-DhcpServerv4Lease cmdlet. The Get-DhcpServerv4Lease cmdlet returns the bad address lease objects from all the scopes and the bad address lease objects are piped into this cmdlet, which deletes all of the bad address leases.

Example 6: Delete leases in a scope by using the pipeline

PS C:\> Get-DhcpServerv4Lease -ComputerName "dhcpserver.contoso.com" -ScopeId 10.10.10.0 -AllLeases | Remove-DhcpServerv4Lease -ComputerName "dhcpserver.contoso.com"

This example deletes all IPv4 address leases from the scope 10.10.10.0. The command works by pipelining from the first cmdlet Get-DhcpServerv4Lease cmdlet returns the IPv4 address lease objects and the IPv4 address lease objects are piped into this cmdlet, which deletes the bad address leases.

Example 7: Delete all the leases on all the scopes on a computer

PS C:\> Get-DhcpServerv4Scope -ComputerName "dhcpserver.contoso.com" | Remove-DhcpServerv4Lease -ComputerName "dhcpserver.contoso.com"

This example deletes all of the IPv4 address leases from all of the DHCPv4 scopes on the DHCP server service that runs on the computer named dhcpserver.contoso.com. The Get-DhcpServerv4Scope cmdlet returns the DHCPv4 scope objects and the DHCPv4 scope objects are piped into this cmdlet, which deletes each of the address leases.

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.

Type: SwitchParameter
Parameter Sets: (All)
Aliases: 

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

-BadLeases

Specifies that all of the bad IP address leases are deleted. An IPv4 address lease which is declined by a client because of an IPv4 address conflict is marked as bad by the DHCP server service.

Type: SwitchParameter
Parameter Sets: BadLeases
Aliases: 

Required: True
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

-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.

Type: CimSession[]
Parameter Sets: (All)
Aliases: Session

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

-ClientId

Specifies the client ID whose IPv4 address lease is to be deleted. Windows clients use the MAC address as the client ID.

Type: String[]
Parameter Sets: ClientId
Aliases: 

Required: True
Position: 2
Default value: None
Accept pipeline input: True (ByPropertyName)
Accept wildcard characters: False

-ComputerName

Specifies the DNS name, or IPv4 or IPv6 address, of the target computer that runs the DHCP server service.

Type: String
Parameter Sets: (All)
Aliases: Cn

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

-Confirm

Prompts you for confirmation before running the cmdlet.

Type: SwitchParameter
Parameter Sets: (All)
Aliases: cf

Required: False
Position: Named
Default value: False
Accept pipeline input: False
Accept wildcard characters: False

-IPAddress

Specifies one or more IP addresses for which the lease records are deleted.

Type: IPAddress[]
Parameter Sets: IPAddress
Aliases: 

Required: True
Position: Named
Default value: None
Accept pipeline input: True (ByPropertyName)
Accept wildcard characters: False

-PassThru

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

Type: SwitchParameter
Parameter Sets: (All)
Aliases: 

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

-ScopeId

Specifies the scope ID, in IPv4 address format, from which the IP address leases are deleted.

Type: IPAddress
Parameter Sets: ScopeId, ClientId
Aliases: 

Required: True
Position: 1
Default value: None
Accept pipeline input: True (ByPropertyName)
Accept wildcard characters: False
Type: IPAddress
Parameter Sets: BadLeases
Aliases: 

Required: False
Position: 1
Default value: None
Accept pipeline input: True (ByPropertyName)
Accept wildcard characters: False

-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: Int32
Parameter Sets: (All)
Aliases: 

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

-WhatIf

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

Type: SwitchParameter
Parameter Sets: (All)
Aliases: wi

Required: False
Position: Named
Default value: False
Accept pipeline input: False
Accept wildcard characters: False

CommonParameters

This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.

INPUTS

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

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.

NOTES

Add-DhcpServerv4Lease

Get-DhcpServerv4Lease

Get-DhcpServerv4Scope

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