Platform & DevOps·Traffic into and inside the cluster
two private networks can address each other directly without going near the internet, and neither one's address ranges may overlap.
VPC peering
Also callednetwork peering, private connectivity
A direct private connection between two virtual networks, so workloads reach each other over internal addresses. It is the standard way to connect environments, accounts and partners without public exposure, and it is not transitive: peering A to B and B to C does not connect A to C. Overlapping address ranges make it impossible outright, which is why address planning is a decision you make once and regret slowly.