I have set port forwarding to the ip address of one of my futurebit btc miners and it has 10/32. But the router won't let me forward 8333 for any other futurebit node ip address. What am I supposed to do with my other futurebit btc full nodes if i can't use 8333 for them? They all say 10/32.
Or is it that after one is forwarded the other in my "subnet" works with it?
You can only port forward to one device in a single network. This is why more than one full node per household/network does not make sense. You can setup your other nodes at other locations like work/another home etc.