network: ipv4 can be disabled

dashboard/src/js/setupdns.js

@@ -33,6 +33,7 @@ app.controller('SetupDNSController', ['$scope', '$http', '$timeout', 'Client', f
     };
 
     $scope.sysinfoProvider = [
+        { name: 'Disabled', value: 'noop' },
         { name: 'Public IP', value: 'generic' },
         { name: 'Static IP Address', value: 'fixed' },
         { name: 'Network Interface', value: 'network-interface' }