https://medium.com/networks-security/nat-snat-dnat-pat-port-forwarding-b7982fab02cd https://superuser.com/questions/1410865/what-is-the-difference-between-nat-and-snat-dnat#:~:text=SNAT%20is%20Source%20NAT%2C%20or,performing%20an%20IP%20address%20translation.