function New-Subnet {
    [CmdletBinding()]
    param (
        [parameter(Mandatory=$true,ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true,HelpMessage="CIDR of subnet in dotted format (e.g 10.10.10.0/24)",Position=0)]
        [ValidateScript({[ipaddress] $_.Split("/")[0] -and $_.Split("/")[1] -match "\d{1,2}"})]
        [ValidateNotNullOrEmpty()]
        [string]
        $CIDR,
        [parameter(Mandatory=$true,HelpMessage="Section identifier",Position=1)]
        [ValidateNotNullOrEmpty()]
        [int]
        $SectionId,
        [parameter(Mandatory=$false,HelpMessage="Subnet description",Position=2)]
        [ValidateNotNullOrEmpty()]
        [string]
        $Description,
        [parameter(Mandatory=$false,ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true,HelpMessage="Assigns subnet to VLAN",Position=3)]
        [ValidateNotNullOrEmpty()]
        [int]
        $VlanId,
        [parameter(Mandatory=$false,ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true,HelpMessage="Assigns subnet to VRF",Position=4)]
        [ValidateNotNullOrEmpty()]
        [int]
        $VrfId,
        [parameter(Mandatory=$false,HelpMessage="Master subnet id for nested subnet",Position=5)]
        [ValidateNotNullOrEmpty()]
        [int]
        $MasterSubnetId,
        [parameter(Mandatory=$false,HelpMessage="Id of nameserver to attach to subnet",Position=6)]
        [ValidateNotNullOrEmpty()]
        [int]
        $NameserverId,
        [parameter(Mandatory=$false,HelpMessage="Controls weather subnet is displayed as IP address or Name in subnets menu",Position=7)]
        [switch]
        $ShowName,
        [parameter(Mandatory=$false,HelpMessage="Controls if PTR records should be created for subnet",Position=8)]
        [switch]
        $DNSRecursive,
        [parameter(Mandatory=$false,HelpMessage="Controls weather hostname DNS records are displayed",Position=9)]
        [switch]
        $DNSRecords,
        [parameter(Mandatory=$false,HelpMessage="Controls if IP requests are allowed for subnet",Position=10)]
        [switch]
        $AllowRequests,
        [parameter(Mandatory=$false,HelpMessage="Controls which scanagent to use for subnet (default id 1)",Position=11)]
        [ValidateNotNullOrEmpty()]
        [int]
        $ScanAgentId,
        [parameter(Mandatory=$false,HelpMessage="Controls if new hosts should be discovered for new host scans",Position=12)]
        [switch]
        $DiscoverSubnet,
        [parameter(Mandatory=$false,HelpMessage="Marks subnet as used",Position=12)]
        [switch]
        $IsFull,
        [parameter(Mandatory=$false,HelpMessage="Assignes state (tag) to subnet (default: 1 Used)",Position=12)]
        [ValidateNotNullOrEmpty()]
        [int]
        $TagId,
        [parameter(Mandatory=$false,HelpMessage="Subnet threshold",Position=13)]
        [ValidateScript({ $_ -le 100 -and $_ -ge 1 })]
        [ValidateNotNullOrEmpty()]
        [int]
        $Threshold,
        [parameter(Mandatory=$false,HelpMessage="Location index",Position=14)]
        [ValidateNotNullOrEmpty()]
        [int]
        $LocationId,
        [parameter(Mandatory=$false,ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true)]
        [ValidateScript({ $_ -is [Hashtable] -or $_ -is [PSCustomObject] })]
        [ValidateNotNullOrEmpty()]
        $CustomFields
    )
    process {
        $_params = @{
            Controller = "subnets"
            Method     = "POST"
        }

        $_body = @{
            subnet      = $CIDR.Split('/')[0]
            mask        = $CIDR.Split('/')[1]
            sectionId   = $SectionId
        }
        if ($Description)    { $_body.Add("description", $Description) }
        if ($VlanId)         { $_body.Add("vlanId", $VlanId) }
        if ($VrfId)          { $_body.Add("vrfId", $VrfId) }
        if ($MasterSubnetId) { $_body.Add("masterSubnetId", $MasterSubnetId) }
        if ($NameserverId)   { $_body.Add("nameserverId", $NameserverId) }
        if ($ShowName)       { $_body.Add("showName", "1") }
        if ($DNSRecursive)   { $_body.Add("DNSrecursive", "1") }
        if ($DNSRecords)     { $_body.Add("DNSrecords", "1") }
        if ($AllowRequests)  { $_body.Add("allowRequests", "1") }
        if ($ScanAgentId)    { $_body.Add("scanAgent", $ScanAgentId) }
        if ($DiscoverSubnet) { $_body.Add("discoverSubnet", "1") }
        if ($IsFull)         { $_body.Add("isFull", "1") }
        if ($TagId)          { $_body.Add("state", $TagId) }
        if ($Threshold)      { $_body.Add("threshold", $Threshold) }
        if ($Location)       { $_body.Add("location", $Location) }

        if ($CustomFields) {
            if ($CustomFields -is [PSCustomObject]) {
                $_customFields = @{};
                $CustomFields | Get-Member -MemberType *Property | Where-Object {
                    $_customFields.($_.name) = $CustomFields.($_.name)
                }
            } else { $_customFields = $CustomFields }
    
            $_body = $_body + $_customFields
        }

        $_params.Add("Params",$_body)

        $_result = Invoke-Request @_params
        if ($_result) {
            return Get-Subnet -CIDR $_result
        }
    }
}
Export-ModuleMember -Function New-Subnet