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diff --git a/XTesting/kubespray/docs/macvlan.md b/XTesting/kubespray/docs/macvlan.md
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+# Macvlan
+
+## How to use it
+
+* Enable macvlan in `group_vars/k8s_cluster/k8s_cluster.yml`
+
+```yml
+...
+kube_network_plugin: macvlan
+...
+```
+
+* Adjust the `macvlan_interface` in `group_vars/k8s_cluster/k8s-net-macvlan.yml` or by host in the `host.yml` file:
+
+```yml
+all:
+  hosts:
+    node1:
+      ip: 10.2.2.1
+      access_ip: 10.2.2.1
+      ansible_host: 10.2.2.1
+      macvlan_interface: ens5
+```
+
+## Issue encountered
+
+* Service DNS
+
+reply from unexpected source:
+
+add `kube_proxy_masquerade_all: true` in `group_vars/all/all.yml`
+
+* Disable nodelocaldns
+
+The nodelocal dns IP is not reacheable.
+
+Disable it in `sample/group_vars/k8s_cluster/k8s_cluster.yml`
+
+```yml
+enable_nodelocaldns: false
+```