diff --git a/doc/source/devref/cloudpipe.rst b/doc/source/devref/cloudpipe.rst
index e12d47dd7b89..95570aa1b34a 100644
--- a/doc/source/devref/cloudpipe.rst
+++ b/doc/source/devref/cloudpipe.rst
@@ -50,6 +50,18 @@ Making a cloudpipe image is relatively easy.
    :language: bash
    :linenos:
 
+# set up.sh in /etc/openvpn/
+
+.. literalinclude:: up.sh
+   :language: bash
+   :linenos:
+
+# set down.sh in /etc/openvpn/
+
+.. literalinclude:: down.sh
+   :language: bash
+   :linenos:
+
 # download and run the payload on boot from /etc/rc.local.
 
 .. literalinclude:: rc.local
diff --git a/doc/source/down.sh b/doc/source/down.sh
new file mode 100644
index 000000000000..5c1888870bf8
--- /dev/null
+++ b/doc/source/down.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+BR=$1
+DEV=$2
+
+/usr/sbin/brctl delif $BR $DEV
+/sbin/ifconfig $DEV down
diff --git a/doc/source/up.sh b/doc/source/up.sh
new file mode 100644
index 000000000000..073a58e158c4
--- /dev/null
+++ b/doc/source/up.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+BR=$1
+DEV=$2
+MTU=$3
+/sbin/ifconfig $DEV mtu $MTU promisc up
+/usr/sbin/brctl addif $BR $DEV