noSourcePreservation

Optional. Indicates whether the firewall operates in proxy mode, in which the source IP address of the traffic is not preserved. When set to TRUE, the firewall proxies traffic through a NAT gateway and the traffic reaching the destination uses the NAT gateway's IP address as the source.

When you set this to TRUE, you must specify NatGatewayMappings and VpcEndpoint instead of a top-level VpcId and SubnetMappings.

You can't change this setting after you create the firewall.

Default value: FALSE