Network Address Translation
To share public IP address for multiple hosts
Replace outgoing datagrams of source port ip to NAT ip address and new port number. Also checksum is re-computed. It increase complexity and network performance
NAT Notion
NAT Usages
How NAT traversal works
We covered a lot of ground in our post about How Tailscale Works . However, we glossed over how we can get through NATs (Network Address Translators) and connect your devices directly to each other, no matter what's standing between them. Let's talk about that now!
https://tailscale.com/blog/how-nat-traversal-works/

NAT란?
NAT란...? 가령 공유기 설정을 직접 한번 만져보신분들은 어디선가 본 듯한 단어입니다. - 네트워크 주소 변환(Network Address Translation, 줄여서 NAT)은 IP 패킷의 TCP/UDP 포트 숫자와 소스 및 목적지의 IP..
https://jwprogramming.tistory.com/30

NAT에 대해서 자세히 알아보고 Cisco 장비에서 NAT 설정을 해보자!
NAT(Network Address Translation)NAT는 사설 IP를 사용하고 있는 네트워크를 공인 IP주소로 ...
https://m.blog.naver.com/PostView.nhn?blogId=stop2y&logNo=220080766824&proxyReferer=https:%2F%2Fwww.google.com%2F

Seonglae Cho