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18 days agoIpv4 shortage lead to a lot of IPS adopting CG-NATs where they are sharing one exit IPv4 for multiple end users and that’s why opening a port on the end user side won’t do a thing as your just opening a port in the ISP Network and not to the Internet
https://youtu.be/XrlrbfGZo2k that talk was on of the funniest that year