Thanks for posting and welcome! That is a great question, however as mentioned it is not plausible while using our service and should not be attempted due to contractual agreements. If you have anymore questions or concerns feel free to let us know.
Why can they be open? I got a game called farming simualtor, And to host a LAN server you also have to have a internet connection to verify a player, And i cannot host the LAN server since the ports are blocked, Meaning i cannot play on my other LAN computers is there anyway this can be fixed?