1. Check your ISP contract. If it is a residential connection, it probably says you are not allowed to share your connection with people outside your home (and it could be argued that you are doing so by running this).
2. Check your laws. In Spain, if your connection is used to conduct illegal activities and you willingly gave access to the attackers (which is what you are doing here) then you are a "necessary collaborator" and would be found guilty of these crimes.
In other countries, “not technically illegal” may apply. In Spain, it does not.
Or to give another analogy, it’s not technically illegal to sit in a car. It’s a different matter if you’re sitting in the car as a lookout while a crime is occurring. While there’s “intent” that matters in that particular example, when it comes to internet crime in Spain, intent doesn’t matter, facilitation is all that does.
edit: The information on how it's secured for packeteers seems a bit limited. (how do you prevent people spraying 192.168.1.1 into all endpoints?).
But it's interesting enough to hit up in a seperate docker network. I'm looking forward to seeing if it'll actually use GBs.