After finding out how to share files and folders between the host and guest operating systems (both Windows Server 2012 R2) through virtual switches, and reading some tutorials online on how to do this, I had created two virtual switches for my guest OS. One is an external switch (vNET) using my Ethernet connection and the other is an internal switch (vLAN) that has no internet connection and I planned to use to be able to file share between the guest and host OSes. These have been configured inHyper-V's Virtual Switch Manager, and specifically in the VM's settings too.
However, I've realised that even when vLAN is disabled, vNET is still able to access the network shares, meaning these are publicly visible.
Is there a way I can make network shares only accessible when vLAN is enabled? I want the internal switch to only be responsible for internal network traffic that shouldn't be visible externally.