I have the itch to hook up a second DreamPi on my network to play online games together with friends when they come over. I'm aware that the majority of Dreamcast games require an unique IPv4 public address and I have a block of static IP's from my ISP that I can use for this functionality with 1:1 NAT.
My question is: Does the DreamPi support UPnP? It's impossible for me to open the same ports in my firewall for two different internal IP addresses but UPnP might be able to get around that (I use it for my multiple PS3/PS4 consoles PSN connectivity)