Permanent Point-to-Site VPN to Azure for all VMs on my Hyper-V server

I'm working from an office where I don't have control over the network and I cannot set up a site-to-site VPN that normally would be set up from Cisco box or similar.

I followed the steps for a Point-to-Site VPN and it works fine for my user when logged in: I can connect to my Azure VMs by using their internal addresses (10.0.1.x range), etc., so far so good.

But, what I really want to do is to have some of my local VMs run SharePoint web front ends towards the SharePoint farm hosted in Azure. How can I use my Point-to-Site VPN to use it for all Hyper-V VMs on a server? How can I make the VPN permanent and not only available for my user and only when I signed on?