Common use cases for NAT

This reference provides information about common use cases for NAT (Network Address Translation) on ASA devices, organized by NAT type and implementation method.

Twice NAT and manual NAT

These are common tasks that can be achieved using "Network Object NAT", also known as "Auto NAT":

Enable a server on the inside network to reach the internet using a public IP address
Enable users on the inside network to access the internet using the outside interface's public IP address
Server availability on specific ports of public IP addresses
Private to public IP address range translation

Network object NAT and auto NAT

This is a common task that can be achieved using "Twice NAT", also know as "Manual NAT":

Preventing IP address translation ranges for outside interface traversal