To use network address translation (NAT), you must define nicknames for the IP addresses you intend to use.
You cannot create NAT rules with the standard 32-bit address notation. Rather than specifying a real address such as 193.112.14.90, you must refer to 193.112.14.90 by a name. The system associates the name you defined with the corresponding addresses and translates them accordingly. Therefore, you must define your addresses before your system can apply NAT rules to them.
The Packet Rules Editor allows you to create two types of NAT rules. One type allows you to hide addresses, while the other type allows you to map addresses.
Hide addresses when you want to keep your private addresses hidden from public view. A hidden address rule allows you to hide multiple internal addresses behind a single public IP address. This type of NAT is also known as masquerade NAT.
Map addresses when you want to route traffic from a single public IP address into a single internal address. This type of NAT is also known as static NAT.
For instructions on how to hide or map addresses, use the Packet Rules Editor online help.
If you plan to filter traffic flowing into and out of your network, go to Create IP filter rules. Otherwise, proceed to Add comments in the packet rules.