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by blueflow 556 days ago
IP packets originating from or addressed to a private IP address cannot be routed through the public Internet.
1 comments

You can't send a packet addressed to i.e. 192.168.1.2 oder the Internet, sure. But that wasn't what we were talking about either. You can connect to the device that's behind a nat and has that ip address. I've linked to one of the best known strategies for that, hole punching.

Feel free to read that to broaden your horizon

Look what Arnavion wrote in this thread previously:

> If your firewall is disabled, an incoming v4 packet on the WAN interface with destination IP = a NAT'ed LAN device's address like 192.168.1.2 ....