Does Access Control block OUTGOING or INCOMING connections?

Kevin and Crimp Guru,

Sorry I didn't notice your responses and posted another thread, but maybe we can continue here....

I will try to explain what I am looking for, and why...

So we have Orbi through our house (1 router and 4 satellites), and I mostly work from home.  

I have one situation, where I had to set up a small dev environment (4 machines, one running multiple Vbox guests), and once in a while I need to provide some access to the "outside", e.g., so some colleagues can test from outside.

Usually, I try to limit how long I leave those open to the outside, but there was a situation where I had to leave one machine accessible to the outside for several hours and, from the Orbi logging I found a TON of connections.

So, if possible, I would like to basically configure an "inbound whitelist" that would prevent ANY inbound communications from outside the Orbi, other than from the devices on the whitelist.

I've been looking into how I can accomplish that, but if the Orbi could do that, that would be great!

Thanks,

Jim