diff --git a/src/protonvpn-nat b/src/protonvpn-nat
new file mode 100755
index 0000000..b561011
--- /dev/null
+++ b/src/protonvpn-nat
@@ -0,0 +1,12 @@
+#!/bin/sh
+unset IFS
+set -euf
+
+while true; do
+    natpmp-client.py \
+        -g 10.2.0.1 \
+        0 \
+        0
+
+    sleep 45
+done