About This Architecture

OCI hub-spoke network in us-ashburn-1 region with DRG v2 routing four attachments: a central Hub VCN, Production and Development Spoke VCNs, and hybrid on-premises connectivity via FastConnect 10Gbps and IPsec VPN backup. Internet-facing traffic flows through Internet Gateway, WAF Policy, and OCI Load Balancer to Instance Pools in the Production spoke, while NAT and Service Gateways enable outbound and managed service access. DRG Route Tables enforce hub-to-spoke and spoke-to-hub routing with network segmentation via Security Lists and Network Security Groups. This architecture demonstrates OCI best practices for multi-region scalability, high availability, and secure hybrid cloud integration. Fork and customize this diagram on Diagrams.so to adapt CIDR blocks, add additional spokes, or modify routing policies for your environment.

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How do I design a hub-spoke network in OCI with DRG v2 routing and hybrid on-premises connectivity?

This diagram shows an OCI hub-spoke topology where DRG v2 acts as the central routing hub, connecting a Hub VCN (10.0.0.0/16) to Production (10.1.0.0/16) and Development (10.2.0.0/16) Spoke VCNs, plus on-premises infrastructure via FastConnect 10Gbps and IPsec VPN backup. DRG Route Tables enforce directional routing: spokes route 0.0.0.0/0 to hub, hub routes spoke CIDRs back to spokes. Internet tr