diff --git a/shell/natpmpcd b/shell/natpmpcd
new file mode 100644
index 0000000..c612a52
--- /dev/null
+++ b/shell/natpmpcd
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+while true; do
+    if ! natpmpc -a 1 0 udp 60 -g 10.2.0.1 && natpmpc -a 1 0 tcp 60 -g 10.2.0.1; then
+        echo "ERROR with natpmpc command"
+        break
+    fi
+    sleep 45
+done