diff --git a/modules/rhizo_base/files/var/SysmoBTS/chk_masq b/modules/rhizo_base/files/var/SysmoBTS/chk_masq
new file mode 100644
index 0000000..303e49a
--- /dev/null
+++ b/modules/rhizo_base/files/var/SysmoBTS/chk_masq
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+. /home/rhizomatica/bin/vars.sh
+
+/sbin/iptables -t nat -vnL | egrep "MASQUERADE.*all.*$_PUBIF.*172.16.0.0/16.*0.0.0.0/0"
+if [ $? != 0 ] ; then
+	# Add the Masquerade RULE
+	iptables -t nat -I POSTROUTING -s 172.16.0.0/16 -o $_PUBIF -j MASQUERADE
+fi