Network Address Translation (NAT) is a technology that can be used to change source or destination addresses in a connection from one IP address to another one. This module defines the classes performing the translation for IP addresses.

Several different NAT methods are supported using different NAT classes, like GeneralNAT or StaticNAT. To actually perform network address translation in a service, you have to use a NATPolicy instance that contains a configured NAT class. NAT policies provide a way to re-use NAT instances whithout having to define NAT mappings for each service individually.