In Google Kubernetes Engine, clusters can be distinguished according to the way they route traffic from one Pod to another Pod. A cluster that uses Google Cloud Platform Routes is called a routes-based cluster.
To create a routes-based cluster, include the --no-enable-ip-alias flag in the cluster creation command:
gcloud container clusters create [CLUSTER_NAME] --no-enable-ip-alias
where [CLUSTER_NAME] is a name that you choose for your cluster.