---
title: "Configure Kubernetes control plane to operate over IPv6"
description: "Run the Kubernetes control plane over IPv6 with Calico Open Source for dual-stack or IPv6-only clusters, including kubeadm flags and node configuration."
product: "Calico Open Source"
version: "3.32 (latest)"
section: "Networking"
canonical_url: "https://docs.tigera.io/calico/latest/networking/ipam/ipv6-control-plane"
---

# Configure Kubernetes control plane to operate over IPv6

## Big picture

If you have IPv6 connectivity between your nodes and workloads, you may also want to configure the Kubernetes control plane to operate over IPv6, instead of IPv4.

## How to

To configure Kubernetes components for IPv6 only, set the following flags.

| Component                   | **Flag**                                      | **Value/Content**                                                                                                               |
| --------------------------- | --------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------- |
| **kube-apiserver**          | `--bind-address` or `--insecure-bind-address` | Set to the appropriate IPv6 address or `::` for all IPv6 addresses on the host.                                                 |
|                             | `--advertise-address`                         | Set to the IPv6 address that nodes should use to access the `kube-apiserver`.                                                   |
| **kube-controller-manager** | `--master`                                    | Set with the IPv6 address where the `kube-apiserver` can be accessed.                                                           |
| **kube-scheduler**          | `--master`                                    | Set with the IPv6 address where the `kube-apiserver` can be accessed.                                                           |
| **kubelet**                 | `--address`                                   | Set to the appropriate IPv6 address or `::` for all IPv6 addresses.                                                             |
|                             | `--cluster-dns`                               | Set to the IPv6 address that will be used for the service DNS; this must be in the range used for `--service-cluster-ip-range`. |
|                             | `--node-ip`                                   | Set to the IPv6 address of the node.                                                                                            |
| **kube-proxy**              | `--bind-address`                              | Set to the appropriate IPv6 address or `::` for all IPv6 addresses on the host.                                                 |
|                             | `--master`                                    | Set with the IPv6 address where the `kube-apiserver` can be accessed.                                                           |

For dual stack settings, see [Enable IPv4/IPv6 dual-stack](https://kubernetes.io/docs/concepts/services-networking/dual-stack/#prerequisites).