I have a network attached storage (NAS) that connects to two different Wi-Fi networks, depending on its location (it is not anchored always in the same place). Normally, these Wi-Fi networks provide internet access to the computers connected to them. I cannot modify the settings of the Wi-Fi networks. For security reasons, I would like to configure the NAS such that
- it completely rejects any internet connection in both directions, no matter which Wi-Fi network it connects to, and
- it remains accessible from the Wi-Fi LAN.
The idea is that only computers directly connected to the Wi-Fi can access the NAS.
Is this possible? What is the best way to do it? I am not very knowledgeable about networks, so sorry if this is something that may be trivial.
