diff --git a/hosts/yevaud/experiments/pennykettle.nix b/hosts/yevaud/experiments/pennykettle.nix
index 77e6b23..3efd261 100644
--- a/hosts/yevaud/experiments/pennykettle.nix
+++ b/hosts/yevaud/experiments/pennykettle.nix
@@ -6,6 +6,11 @@
   networking.nat.internalInterfaces = [ "ve-pennykettle1" ];
   networking.nat.externalInterface = "ens3";
   networking.nat.forwardPorts = [
+    {
+      sourcePort = 51821;
+      destination = "10.231.136.2:51821";
+      proto = "udp";
+    }
     {
       sourcePort = 51821;
       destination = "[fc00::2]:51821";