NAT allows you to translate private, non-routable IPv4 addresses to one or more
globally-routable IPv4 addresses, thereby conserving an organization’s routable IP
addresses. NAT also allows you to not disclose the real IP addresses of hosts that
need access to public addresses and to manage traffic by performing port forwarding.
You can use NAT to solve network design challenges, enabling networks with identical
IP subnets to communicate with each other.
You configure a NAT policy rule to match a packet’s source zone and destination zone,
at a minimum. In addition to zones, you can configure matching criteria based on the
packet’s destination interface, source and destination address, and service. You can
configure multiple NAT rules.
