Okay... so these questions may seem silly, but I'm having a hard time finding the answers in documentation (and if your answer is the documentation, I'm fine with that). 

I've been trying to make a network whose discovery is limited to a range of known computers/ips/etc. My understanding is that I can
1) Limit who is able to connect to those with a key (swarm.key)
2) I can set the bootstrap array to the peers I want to connect to

However, I was having a hard time getting things to connect (across networks). Is this because I changed the bootstrap (in that the default bootstrap has portforwarded ips/etc that both peers connect to and are then connected directly between)?