# NatGatewayMappingProperty

A mapping to a NAT gateway that a proxy-mode firewall proxies egress traffic through.

- Source: Generated code
- Type last changed: v2.275.0 · 26 Oct 2026

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_networkfirewall as networkfirewall } from 'aws-cdk-lib';
const natGatewayMappingProperty: networkfirewall.CfnFirewall.NatGatewayMappingProperty = {
  natGatewayId: 'natGatewayId',
};
```

## Properties

- `natGatewayId`: string (required) — The unique identifier of a NAT gateway.