Disclosed are examples of a method, system, devices and nodes to conduct communications between a device coupled to a communication network and a network security enforcement node, such as a firewall. An illustrative method includes, with a device coupled to a network security enforcement node through a communication network, requesting from the network security enforcement node information comprised of at least one of supported and enabled features and, in response to receiving the request, sending information descriptive of at least one of network security enforcement node supported and enabled features. The method may further include requesting by the device that at least one network security enforcement node feature be one of enabled or disabled.