In VPC, select Endpoints, select EndpointPrivateLink and copy DNS names to check connection from On-Premise to Provider and from Consumer to Provider VPC
There are 3 lines of DNS names, the first 1 line is DNS name corresponding to services in both AZs, the 2 lines below correspond to each AZ
On machine EC2-Consumer
Execute orders
curl <DNS name>
or
curl <Ip>:80
IP is the private IP address of 2 Webserver in Provider VPC