diff --git a/docs/en_US/guide/lxd_custom.md b/docs/en_US/guide/lxd_custom.md
index f14250bdd2..41b121b911 100644
--- a/docs/en_US/guide/lxd_custom.md
+++ b/docs/en_US/guide/lxd_custom.md
@@ -478,3 +478,5 @@ client
 ip link set user-ipv6 down
 ip tunnel del user-ipv6
 ```
+
+The above deletion is only temporary, for permanent deletion you must modify and delete the contents of the ``/etc/network/interfaces`` file that you have previously added.
\ No newline at end of file
diff --git a/docs/guide/lxd_custom.md b/docs/guide/lxd_custom.md
index d9f4bc0fb8..4eda40825f 100644
--- a/docs/guide/lxd_custom.md
+++ b/docs/guide/lxd_custom.md
@@ -431,3 +431,4 @@ ip link set user-ipv6 down
 ip tunnel del user-ipv6
 ```
 
+以上删除的方式只是临时删除，永久删除务必修改删除```/etc/network/interfaces```文件中你之前增加的内容
\ No newline at end of file