nonVPCnative
NonVPCnative, often described as non-VPC native, refers to a Kubernetes networking mode in which the pod network does not use the Amazon VPC for IP addressing. In this mode, pods receive IP addresses from a separate pod network CIDR managed by the cluster’s container network interface (CNI) plugin, such as kubenet, Flannel, or Calico, and pod-to-pod traffic is routed through an overlay or host-based mechanism rather than through the VPC’s routing table. As a result, pod IPs are not directly routable within the VPC and do not belong to the VPC’s IP space.
This contrasts with VPC native networking (also called IP per pod), where the AWS VPC CNI plugin
NonVPCnative is often associated with legacy Kubernetes networking configurations or with environments where a non-VPC CNI
Migration and considerations: clusters currently configured for non-VPC native networking may require planning to switch to