luftschleuse: srcip filter doesn't work with ip6tables :/

luftschleuse.nix

@@ -246,7 +246,7 @@ in
       enable = true;
       enabledCollectors = [ "systemd" ];
       openFirewall = true;
-      firewallFilter = "-i eth0 -s 83.133.178.0/24 -p tcp --dport 9100";
+      firewallFilter = "-i eth0 -p tcp --dport 9100";
       port = 9100;
     };
   };