1. Container Engine for Kubernetes
  2. Creating Network Resources
  3. Workload Cluster Network CIDR Ranges

Workload Cluster Network CIDR Ranges

Throughout this documentation, variables are used to represent CIDR ranges for instances in different subnets. The following table lists the CIDR variables and example values. Change these example values as necessary for your environment. The IP Subnet Calculator on Calculator.net is one tool for finding all available networks for a given IP address and prefix length.

Variable Name Description Example Value

vcn_cidr

VCN CIDR range

172.31.252.0/23

worker_cidr

Worker subnet CIDR

172.31.253.0/24

workerlb_cidr

Worker load balancer subnet CIDR

172.31.252.0/25

kmi_cidr

OKE control plane subnet CIDR

172.31.252.224/28

kmilb_cidr

OKE control plane load balancer subnet CIDR

172.31.252.240/28

kube_client_cidr

CIDR for clients that are allowed to contact the Kubernetes API server

10.0.0.0/8