Hello,
I managed to upgrade our server and i tested your module.
Do you manage the Pause on the Cisco devices.
I setup a simple test:
$router = new CiscoRouter('Ipaddress', 'user', 'pasword,'ssh');
$router->connect();
$router->enable('enable');
$config = $router->exec('show run');
$router->disconnect();
echo $config;
I checked on router a i see the login but nothing happened on my terminal :)