SDN: creating a NAT connection using SLB MUX

I'm trying to install an SDN architecture using the VMM templates. So far, I've been able to install the NC, and successfully make VMs ping each other on the same virtual network using VXLAN. Now, I've installed my load balancers but I had issues trying to connect a VM network to a NAT connection. I'm very intrigued by the output of this cmdlel:

Get-SCNetworkGateway
Service                                   : NC
Name                                      : NC
Description                               :
ConnectionString                          : serverurl=https://xx-stw-ts-nc04.xx.ca;SouthBoundIPAddress=10.12.104.54;ser
                                            vicename=NC-VMM-TP5
RunAsAccount                              : VMM domain
NVGRESupported                            : True
NVGREMultihopSupported                    : False
MaxRoutingDomainSupported                 : 50
MaxVSIDSupported                          : 55
MaxWNVPoliciesSupported                   : 99999999
MaxVPNConnectionSupported                 : 250
MaxVPNConnectionPerRoutingDomainSupported : 10
VPNEncryptionMethodsSupported             : DES, DES3, AES128, AES192, AES256
VPNIntegrityCheckMethodsSupported         : MD5, SHA1, SHA256, SHA384
VPNCipherTransformsSupported              : DES, DES3, AES128, AES192, AES256, GCMAES128, GCMAES192, GCMAES256
VPNAuthenticationTransformsSupported      : SHA256128, MD596, SHA196, GCMAES128, GCMAES192, GCMAES256
VPNPFSGroupsSupported                     : PFS1, PFS2, PFS2048, ECP256, ECP384, PFSMM, PFS24
VPNDHGroupsSupported                      : Group1, Group2, Group14, ECP256, ECP384, Group24
VPNProtocolSupported                      : IKEv2, GRE, L3, IPSec
VPNAuthenticationSupported                : PSKOnlyNATSupported                              : False
BGPSupported                              : True
VPNTrafficRegulationSupported             : False
NATTrafficRegulationSupported             : False
MeteringSupported                         : False
OutgoingNATRulesSupported                 : False
DeviceId                                  : 087BDC3D9C3028E089A68C404879471C14193F0D
Manufacturer                              : Microsoft
Model                                     : Microsoft Network Controller
VMNetworkGateways                         : {}
GatewayConnections                        : {}
ConfigurationProvider                     : Microsoft Network Controller
ServerConnection                          : Microsoft.SystemCenter.VirtualMachineManager.Remoting.ServerConnection
ID                                        : 8f9a5e3c-5c26-4f02-8171-ab9c4bcc6755
IsViewOnly                                : False
ObjectType                                : NetworkGateway
MarkedForDeletion                         : False
IsFullyCached                             : True

It seems that NAT is not supported by my network controller. Is that suppose to happen? I've been trying to follow this procedure: https://blogs.technet.microsoft.com/larryexchange/2016/05/31/step-be-step-for-deploying-a-sdnv2-using-vmm-tp5-part-3/

But I can't seem to connect to my outside network trough NAT. Any ideas on why the cmdlet tells me NAT is not supported and on how to create a NAT connection with a VM network?