Does either Funnel or Tunnel allow this use case for old UDP-based games like Quake etc? I would like to just be able to send strangers a temporary permalink t

Does either Funnel or Tunnel allow this use case for old UDP-based games like Quake etc? I would like to just be able to send strangers a temporary permalink to my server for a one-off session, then turn it off or have it expire automatically once we're finished. This would not be feasible if I have to also ask whomever I come across to install clients, as opposed to just connecting from within the game.