In hide NAT, the source IP address is translated. Hide NAT is also known as many-to-one NAT or PAT (Port Address Translation). It maps multiple private IP addresses to one public IP address by using different port numbers. Hide NAT allows outbound connections from the private network to the public network, but not inbound connections from the public network to the private network. In static NAT, the source or destination IP address is translated depending on the direction of the traffic. Static NAT is also known as one-to-one NAT or bi-directional NAT. It maps one private IP address to one public IP address and allows both outbound and inbound connections. In simple NAT, there is no translation of IP addresses. Simple NAT is also known as routing mode or transparent mode. It allows traffic to pass through the NAT device without any modification. There is no hide NAT for destination IP address translation5678 References: What Is Network Address Translation (NAT)?, Network address translation, Network Address Translation Definition, Network Address Translation (NAT)