One of the most important concepts to understand when working with NAT is the processing order of the various services that might be configured within the vRouter. If the processing order of the services is not considered, the results achieved might not be what you expect. This section covers the following topics:

• Traffic flow through firewall, NAT, and routing
• Interaction between NAT and routing
• Interaction between NAT and firewall
• Interaction between NAT and DNS