private-public-ip.md

Private(Local) IP vs Public IP (내부 IP, 외부 IP, IP : Internet Protocol)

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1. Find my IP Address on macOS

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• Option +"Click Wifi Menu Bar", then you can see below

• ipconfig getifaddr en0 if connected via a wireless connection.

• ipconfig getifaddr en1 if connected via ethernet.

• ipconfig getifaddr en3 if connected via a Thunderbolt-to-ethernet adaptor.

• curl http://ipecho.net/plain; echo

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public-vs-private-ip-address

• Private IP Address : Local area 에서 Router 가 사용하는 IP addresses, used to assign computers within your private space without letting them directly expose to the Internet
• Public IP Address : Can be accessed over the Internet, globally unique IP address assigned to a computing device