사설 IP, 공인 IP 사설 IP, 공인 IP https://kldp.org/node/110155 https://velog.io/@hidaehyunlee/%EA%B3%B5%EC%9D%B8Public-%EC%82%AC%EC%84%A4Private-IP%EC%9D%98-%EC%B0%A8%EC%9D%B4%EC%A0%90 Network 2022.07.18