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One visitor stopped by today to resolve a Kubernetes cluster bootstrapping issue with VirtualBox VMs.

The VirtualBox default DHCP servers IP subnets of type 192.168.x.0/24 interfere with the calico default pod network In order to fix the IP overlap we managed to update the pod subnet CALICO_IPV4POOL_CIDR to in the calico.yaml file, and the podSubnet to the same in the kubeadm-config.yaml file.

This change allowed the cluster to initialize successfully.

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