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Add dual-stack warning

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Signed-off-by: Manuel Buil <mbuil@suse.com>
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Manuel Buil
2021-11-05 08:53:00 +01:00
parent 51bf01b489
commit 04fd831f00
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content/k3s/latest/en/installation/network-options/_index.md
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@@ -72,6 +72,8 @@ You should see that IP forwarding is set to true.
### Dual-stack installation
Dual-stack networking must be configured when the cluster is first created. It cannot be enabled on an existing single-stack cluster.
To enable dual-stack in k3s, you must provide valid dual-stack `cluster-cidr` and `service-cidr`, and set `disable-network-policy` on all server nodes. Both servers and agents must provide valid dual-stack `node-ip` settings. Node address auto-detection and network policy enforcement are not supported on dual-stack clusters when using the default flannel CNI. Besides, only vxlan backend is supported at the moment. This is an example of a valid configuration:
```