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Lets say my IP currently is: 123.123.123.123
How can I get that string programmatically?
Note: I don’t want to get this IP: 192.168.0.10, I want that IP which others can use to connect into my computer via HTTP or anything.
NOTE: I dont want to open some web-page such as ip4.me to get the address, I want to get it with just C++.
I tried to google but every suggestion was “load a page and read the IP it tells you”. Is that really the only way?!
You can fetch it from http://api.externalip.net/ip/ or some similar services, but I’m not sure how reliable these sites are, in means of availability
Any other way would be extremely complicated, as in general, no network equipment has api to tell external IP, and even if it had, you can not tell is there a simple xDSL router in front of you or Cisco ASA nating outbound traffic