Configure Routing Between Regions

Once the Bastion hosts are deployed, update the route tables associated with the subnets hosting these instances to enable communication with the SDDC resources in both regions.

This ensures the following:

• The Bastion host in OCI Dedicated Region A (VCN-Primary) can access:
  • vCenter, NSX Manager, and ESXi hosts in both OCI Dedicated Region A and OCI Dedicated Region B
• The Bastion host in OCI Dedicated Region B (VCN-Secondary) can access:
  • vCenter, NSX Manager, and ESXi hosts in both OCI Dedicated Region B and OCI Dedicated Region A

Ensure that the route targets point to the correct DRG for inter-region traffic and NAT Gateway or Service Gateway as needed for outbound or internet access.

Once configured, validate:

• Private IP connectivity (ping/SSH) from the jump hosts to all critical management interfaces (vCenter, NSX Manager)
• NSG and security list rules allow necessary ports (e.g., TCP 443, TCP 902)