That's not P2P hole punching. That's just a UDP to a cloud server. Stateful firewalls remember UDP sessions for a period of time. UDP hole punching is when bot

That's not P2P hole punching. That's just a UDP to a cloud server. Stateful firewalls remember UDP sessions for a period of time. UDP hole punching is when both parties are behind NAT and it's used almost exclusively for P2P: torrents, VoIP phones, video chat, multiplayer games, ZeroTier, WebRTC, IPFS, etc.