# Add NAT definitions for converted Virtual Firewall elements

On the Define NAT Definitions for Virtual Security Engines page, you can define how Virtual Firewalls translate network addresses.

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NAT rules are automatically generated and organized in the Firewall Policy based on the NAT definitions created in the Firewall properties.

For more details about the product and how to configure features, click Help or press F1.

## Steps

1. To use the default NAT address as the Public IP Address if there is not a more specific NAT definition that matches the traffic, select Use Default NAT Address for Traffic from Internal Networks.
2. To view the Default NAT Address properties, click Show Details.
3. In the NAT Definitions for list, select the Virtual Firewall for which you want to add NAT definitions .
4. Add or edit the NAT definitions.
5. Click Next.
   The Select Additional Configuration Options page opens.
6. Continue the configuration in one of the following ways:
   - If you want to define additional options, select additional configuration options for the converted Virtual Firewall elements.
   - Otherwise, Click Next. The Summary page opens.