I'm not sure what you mean by "successfully logged in" into your router.
Your router will need to support NAT to translate your local IP address
to the one on the Internet.
sudo tcpdump -i enp2s0 -vvvSXn port 80
Some of the tools here might assist in tracking down what is visible to
the world and what is not.
https://tools.dnsstuff.com/#
mjb.
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