The only official information I can find on this is as follows:
Consistent network and security services with VMware NSX:
- Logical Layer 2 networks can be created within VMware Cloud on AWS for application workloads on-demand.
- Layer 3 distributed routing services available between Layer 2 logical networks within VMware Cloud on AWS.
- Secure north-south traffic to and from application workloads with edge firewall services.
- Establish hybrid cloud connectivity (IPsec VPN) between on-premises infrastructure and VMware Cloud on AWS.
- Enable Internet connectivity (NAT) for workloads running on private subnets within VMware Cloud on AWS.
AWS integrations:
- Enable connectivity between VMware Cloud on AWS and customer’s AWS account and authorize access to AWS services and resources.
- Get high-bandwidth, low-latency network connectivity from VMware Cloud on AWS to AWS services.
from: VMware Cloud
I hope this helps, if not let us know and someone will reach out.