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Hole punching works for applications that are designed for it, and can invoke the coordinator. Sometimes, you just want plain old incoming connection (in my cas

Hole punching works for applications that are designed for it, and can invoke the coordinator. Sometimes, you just want plain old incoming connection (in my case, VPN). BTH, I've never tested whether it works with CGNAT or not. It would be additional hop to jump if I would give up my IPv4 address, which obviously I'm not going to.

pas 8y ago
End user residential connections usually need a DynDNS as there's no guarantee you'll get the same IP for any foreseeable time period. So dynDNS could be bundled with hole punching. (It just allocates a port on the CGNAT, due to cost concerns I'm guessing these are rather dumb TCP/UDP devices, so almost anything will work through them.) Of course it's a lot messier than getting a static private address allocated.