Family members use the
A network with their devices; I want to connect a Single board computer (SBC) to the internet, but i can not compromise the private network. If my server is taken over, things can go ugly.
Guest Wifi It Would be possible to use the guest wifi network with port forwarding , where the pool of addresses is not shared and i can't find the other machines by running nmap -sP 192.168.1.1/24 ;
The downside is limited speeds when i would prefer to have full blown 150 mbps with ethernet cable (All this assuming the router has secured this functionality, some haven't); price: wifi dongle 10$
DMZ This one would be obvious for what i've been reading, if i was using wifi on the SBC, but the problem arises when i connect the eth cable, magically i can see everyone in the network again with the router i'm using; price: Don't know any cheap home grade router with real DMZ capabilities when using eth.
Defining 2 different subnets This would set apart the different networks, hopefully not allowing devices from each to connect between them. Unfortunately my router is a crappy one full of limitations imposed by the ISP, not giving me routing options; price: 30$-50$ Any cheap router with routing capabilities
Run a Virtual Machine Not practical considering the SBC has a weak A20 processor under the hood.
One of the reasons i'm trying to configure the setting on my own (instead of buying an hosting account) is to learn, so if i have made any incorrect assumptions above in my statements, please correct me. Thank you!