VPC peering
With VPC peering, you can connect two existing VPCs, regardless of whether they belong to the same project or organization. In this scenario, the administration of each VPC stays separated.
Each site of the peering is set up independently and peering is only established once both sides are configured. Project Owner/Editor and Network Admin roles are allowed to perform the configuration. It is important to remember that the CIDR prefixes cannot overlap between peering VPCs subnets. Once peering has been established, every internal IP becomes accessible across peered networks. Multiple peers can be created per VPC, but transitive peering is not supported. This means that only connectivity between directly peered VPCs is allowed. ...
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