Get-DhcpFilterInformation by IP

function Get-DhcpFilterInformation
{
    #[CmdLetBinding()]
    Param
    (
        [Parameter(Mandatory=$true)]
        [string]$ip,
        [Parameter(Mandatory=$true)]
        [validateset("Allow","Deny","Both")]
        [string]$type = "Both"
    )
    DynamicParam
    {
        $ParameterName = 'Scope'

        $RuntimeParameterDictionary = New-Object System.Management.Automation.RuntimeDefinedParameterDictionary

        $AttributeCollection = New-Object System.Collections.ObjectModel.Collection[System.Attribute]

        $ParameterAttribute = New-Object System.Management.Automation.ParameterAttribute
        $ParameterAttribute.Mandatory = $true
        $ParameterAttribute.Position = 1

        $AttributeCollection.Add($ParameterAttribute)

        $arrSet = (Get-DhcpServerv4Scope).ScopeId
        $ValidateSetAttribute = New-Object System.Management.Automation.ValidateSetAttribute($arrSet)

        $AttributeCollection.Add($ValidateSetAttribute)
        $RuntimeParameter = New-Object System.Management.Automation.RuntimeDefinedParameter($ParameterName, [string], $AttributeCollection)
        $RuntimeParameterDictionary.Add($ParameterName, $RuntimeParameter)
        return $RuntimeParameterDictionary
    }

    begin
    {
        $Scope = $PsBoundParameters[$ParameterName]
    }

    process
    {
        $clientinfo = @()

        if ($type -eq 'Both')
        {
            $filter = Get-DhcpServerv4Filter | where {$_.List -like "*"}
        }
        else
        {
            $filter = Get-DhcpServerv4Filter | where {$_.List -eq $type}
        }


        $lease = Get-DhcpServerv4Lease -ScopeId $Scope | where {$_.IPAddress -eq $ip}
        foreach ($item in $filter)
        {
            if ($lease.ClientId -eq $item.MacAddress)
            {
                $obj = New-Object -TypeName psobject
                try
                {
                    $name = Resolve-DnsName $lease.IPAddress.tostring() -QuickTimeout -ErrorAction Stop
                    $obj | Add-Member -MemberType NoteProperty -Name PcName -Value $name.NameHost
                }
                catch
                {
                    $name = "N/A"
                    $obj | Add-Member -MemberType NoteProperty -Name PcName -Value $name
                }

                $obj | Add-Member -MemberType NoteProperty -Name IP -Value $lease.IPAddress
                $obj | Add-Member -MemberType NoteProperty -Name MAC -Value $lease.ClientId
                $obj | Add-Member -MemberType NoteProperty -Name ListType -Value $item.List
                $obj | Add-Member -MemberType NoteProperty -Name Description -Value $item.Description

                $clientinfo += $obj
            }

            if ($clientinfo -ne $null)
            {
                break
            }
        }

        if ($clientinfo -ne $null)
        {
            $clientinfo
        }
        else
        {
            Write-Host  -ForegroundColor Red "No Client with $ip in $type List"
        }
    }
}