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Get-DhcpServerv6FreeIPAddress

Brian Lich|Last Updated: 3/27/2017

SYNOPSIS

Gets free IPv6 addresses from a scope.

SYNTAX

Get-DhcpServerv6FreeIPAddress [-ComputerName <String>] [-Prefix] <IPAddress> [[-NumAddress] <UInt32>]
 [-StartAddress <IPAddress>] [-EndAddress <IPAddress>] [-CimSession <CimSession[]>] [-ThrottleLimit <Int32>]
 [-AsJob] [<CommonParameters>]

DESCRIPTION

The Get-DhcpServerv6FreeIPAddress cmdlet gets one or more free IPv6 addresses from the specified scope.

If you specify the NumAddress parameter, the requested number of free IPv6 addresses are returned. If you do not specify the NumAddress parameter, a single free IPv6 address is returned. The maximum number of free IPv6 addresses returned is capped at 1024.

If you specify the StartAddress parameter and not the EndAddress parameter, the free IPv6 addresses starting from the StartAddress parameter value through the ending of the IPv6 address range of the scope are returned.

If you specify the EndAddress parameter and not the StartAddress parameter, the free IPv6 addresses starting from the start of the IPv6 address range of the scope through the EndAddress parameter value are returned.

If you specify both the StartAddress and EndAddress parameters, the free IPv6 addresses between the specified StartAddress and EndAddress parameter values are returned.

The exclusion address ranges, reservations, active, offered and bad, or declined, leases are excluded while returning free IPv6 addresses.

The IPv6 address ranges associated with a policy are included while returning free IPv6 addresses.

The IPv6 addresses which are in expired, or doomed, state are included while returning free IPv6 addresses.

If the requested number of free IPv6 addresses could not be found, a warning is displayed.

EXAMPLES

Example 1: Get a free address

PS C:\> Get-DhcpServerv6FreeIPAddress -ComputerName "dhcpserver.contoso.com" -Prefix 2001:4898:7020:1020::

This example gets a free IPv6 address from the specified scope.

Example 2: Get ten free addresses

PS C:\> Get-DhcpServerv6FreeIPAddress -ComputerName "dhcpserver.contoso.com" -Prefix 2001:4898:7020:1020:: -NumAddress 10

This example gets a list of ten free IPv6 addresses from the specified scope.

Example 3: Get a free address from a range

PS C:\> Get-DhcpServerv6FreeIPAddress -ComputerName "dhcpserver.contoso.com" -Prefix 2001:4898:7020:1020:: -StartAddress 2001:4898:7020:1020::10 -EndAddress 2001:4898:7020:1020::50

This example gets a free IPv6 address from the specified scope in the IP address range from 2001:4898:7020:1020::10 through 2001:4898:7020:1020::50.

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

-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

-ComputerName

Specifies the DNS name, or IPv4 or IPv6 address, of the target computer that runs the Dynamic Host Configuration Protocol (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

-EndAddress

Specifies the ending IPv6 address of the range from which the free IPv6 addresses are returned.

Type: IPAddress
Parameter Sets: (All)
Aliases: 

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

-NumAddress

Specifies the number of free IPv6 addresses requested.

Type: UInt32
Parameter Sets: (All)
Aliases: 

Required: False
Position: 2
Default value: 1
Accept pipeline input: False
Accept wildcard characters: False

-Prefix

Specifies the IPv6 subnet prefix of the scope from which one or more free IPv6 addresses are requested.

Type: IPAddress
Parameter Sets: (All)
Aliases: 

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

-StartAddress

Specifies the starting IPv6 address of the range from which the free IPv6 addresses are returned.

Type: IPAddress
Parameter Sets: (All)
Aliases: 

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

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/DhcpServerv6Scope

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

System.String[]

NOTES

Get-DhcpServerv4FreeIPAddress

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