You can set up a Virtual Cloud Network (VCN) comprising subnets, and facilitate external connectivity using various gateways like Internet, NAT, Service, and Dynamic Routing Gateways.
I prepared a video on how to get free account, ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-q8Mxx8Uo6V8.htmlsi=h5xKZbAUDhS31FXQ It is really helpful.
