#Heavy Lifting
function create-directExNet {
#Example @@@ create-directExNet -p "VLAN_XXXX-DEADNET" -v "Houston Data Center" -g "192.168.3.1" -n "255.255.255.0" -i "192.168.3.254" -e "__HOU-DEADNET-BKUPRSTR" -d "No Uplink" @@@

#User Specfied Params
param(
[parameter(Mandatory = $true, HelpMessage="dvPortgroup")][alias("-dvPG","p")][ValidateNotNullOrEmpty()][string[]]$dvPG,
[parameter(Mandatory = $true, HelpMessage="CIvCenterName")][alias("-CiVC","v")][ValidateNotNullOrEmpty()][string[]]$vCSCIName,
[parameter(Mandatory = $true, HelpMessage="GateWayIP")][alias("-GWIP","g")][ValidateNotNullOrEmpty()][string[]]$Gateway,
[parameter(Mandatory = $true, HelpMessage="NetMask")][alias("-NetMask","n")][ValidateNotNullOrEmpty()][string[]]$NetMask,
[parameter(Mandatory = $true, HelpMessage="StartandEndIP")][alias("-StartandEndIP","i")][ValidateNotNullOrEmpty()][string[]]$StartandEndIP,
[parameter(Mandatory = $true, HelpMessage="ExtNetName")][alias("-ExtNetName","e")][ValidateNotNullOrEmpty()][string[]]$ExNetName,
[parameter(Mandatory = $true, HelpMessage="ExNetDes")][alias("-ExNetDes","d")][ValidateNotNullOrEmpty()][string[]]$ExNetDes
)

$vcloud = $DefaultCIServers[0].ExtensionData
$admin = $vcloud.GetAdmin()
$ext = $admin.GetExtension()

$mynetwork = new-object vmware.vimautomation.cloud.views.VMWExternalNetwork
$mynetwork.Name = $ExNetName
$mynetwork.Description = $ExNetDes

$vCenter = Search-Cloud VirtualCenter | Get-CIView | where {$_.name -eq "$vCSCIName"}
$dpg = get-view -viewtype DistributedVirtualPortGroup | where {$_.name -like "$dvPG"}

write-host "vCenter href: "$vCenter.href
write-host "dvPG Key: " $dpg.key

$mynetwork.VimPortGroupRef = new-object VMware.VimAutomation.Cloud.Views.VimObjectRef

$mynetwork.VimPortGroupRef.MoRef = $dpg.key
$mynetwork.VimPortGroupRef.VimObjectType = "DV_PORTGROUP"

$mynetwork.VimPortGroupRef.VimServerRef  = new-object VMware.VimAutomation.Cloud.Views.Reference
$mynetwork.VimPortGroupRef.VimServerRef.href = $vCenter.href
#$mynetwork.VimPortGroupRef.VimServerRef.type = "application/vnd.vmware.admin.vmwvirtualcenter+xml"

$mynetwork.Configuration  = new-object VMware.VimAutomation.Cloud.Views.NetworkConfiguration
$mynetwork.Configuration.fencemode = "isolated"

$mynetwork.Configuration.IpScopes  = new-object VMware.VimAutomation.Cloud.Views.IpScopes
$mynetwork.Configuration.IpScopes.IpScope  = new-object VMware.VimAutomation.Cloud.Views.IpScope
$mynetwork.Configuration.IpScopes.ipscope[0].Gateway = $Gateway
$mynetwork.Configuration.IpScopes.ipscope[0].Netmask = $NetMask
$mynetwork.Configuration.IpScopes.ipscope[0].IsInherited = "False"

$mynetwork.Configuration.IpScopes.ipscope[0].ipranges = new-object vmware.vimautomation.cloud.views.ipranges
$mynetwork.Configuration.Ipscopes.ipscope[0].ipranges.iprange = new-object vmware.vimautomation.cloud.views.iprange
$mynetwork.Configuration.IpScopes.ipscope[0].IpRanges.IpRange[0].startaddress = $StartandEndIP
$mynetwork.Configuration.IpScopes.ipscope[0].IpRanges.IpRange[0].endaddress = $StartandEndIP

$result = $ext.CreateExternalNet($mynetwork)
$result
}

#Easy Part
#create-directExNet -p "VLAN_XXXX-DEADNET" -v "Houston Data Center" -g "10.150.150.1" -n "255.255.255.0" -i "10.150.150.254" -e "__HOU-DEADNET-BKUPRSTR" -d "No Uplink"