title: Fix Port Range on Public IP for Azure DevTest Lab
body: <p>Azure DevTest Labs now enable you to use a single public IP to access all your VMs via RDP (see <a href="https://azure.microsoft.com/en-us/updates/azure-devtest-labs-share-public-ip-address-between-lab-vms/" rel="nofollow noreferrer">here</a>). It appears to work using <a href="https://en.wikipedia.org/wiki/Network_address_translation" rel="nofollow noreferrer">NAT</a>, whereby the load balancer will assign a different port number for each VM's RDP port.</p>
  
  <p>Is it possible to define the range of port numbers that the load balancer is allowed to assign to each VM, so I have some idea of the port numbers it will be using?, e.g., 33890-33899</p>