diff --git a/testing/default.nix b/testing/default.nix
index ad5ddde..a845ad6 100644
--- a/testing/default.nix
+++ b/testing/default.nix
@@ -46,7 +46,7 @@ let
               allowedTCPPorts = [
                 10250 # kubelet
               ];
-              trustedInterfaces = ["docker0"];
+              trustedInterfaces = ["docker0" "cni0"];
 
               extraCommands = concatMapStrings  (node: ''
                 iptables -A INPUT -s ${node.config.networking.primaryIPAddress} -j ACCEPT
@@ -88,6 +88,28 @@ let
         ip = "192.168.1.1";
       };
     };
+    extraConfiguration = {...}: {
+      services.kubernetes.flannel.enable = false;
+      services.kubernetes.kubelet = {
+        networkPlugin = "cni";
+        cni.config = [{
+          name = "mynet";
+          type = "bridge";
+          bridge = "cni0";
+          addIf = true;
+          ipMasq = true;
+          isGateway = true;
+          ipam = {
+            type = "host-local";
+            subnet = "10.1.0.0/16";
+            gateway = "10.1.0.1";
+            routes = [{
+              dst = "0.0.0.0/0";
+            }];
+          };
+        }];
+      };
+    };
   } // attrs // {
     name = "kubernetes-${attrs.name}-singlenode";
   });