OCI now supports intra-VCN routing, which creates local routes for each VCN CIDR in all VCN route tables, new and existing, and also supports ingress routing on internet gateways and NAT gateways. Intra-VCN routing allows you to specify a next-hop private IP address within a VCN for traffic destined to an IP address range that overlaps or is a subset of the VCN's CIDR. This enables new security and network virtualization use cases.