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How is hole punching more secure than UPnP? They both achieve exactly the same thing.
by WolfRazu 5y ago
How is hole punching more secure than UPnP? They both achieve exactly the same thing.
- kelnos 5y agoEnabling UPnP on your router enables a malicious app to permanently forward ports from the outside to the inside. The malicious app could also forward ports to other devices on your network. For example, installing a bit of malware on your laptop could set up a port forwarding rule from the internet to your NAS's web interface. UDP hole punching via STUN requires continuous work on the part of a malicious app to keep that port open. Work that could be noticed much easier than a rogue UPnP-using bit of malware. And it can't open ports to other devices on your network.