We currently have three networks, X.X.163.1, X.X.93.1 and 192.168.1.1. Today's setup is like this: http://i.stack.imgur.com/tkKWy.jpg
We now have PPT VPN from internet to the X.X.163.1-network, but really need to access the files from the File Server through VPN. I am also aware that this setup is not optimal. So please, any advices on how to redesign our network?
Rack servers are mostly web and db servers, with only public IP addresses.