Communication networks and information integrity are recently challenged by unauthorized eavesdroppers and intruders. End devices are typically responsible for the integrity of information using strong cryptographic algorithms with symmetric or asymmetric keys. Conversely, networks are responsible for transporting information with the expected quality of service, timely and securely. Although quality of service and timeliness are addressed by network architecture and communication protocols, network security has not been adequately addressed. Traditionally, network intruders tap the medium or the node of the network to eavesdrop or cause malevolent network behavior. Therefore, the next generation intelligent network should be able to detect intrusions and also be able to protect itself and the service it provides. Intrusion detection in realtime has been previously presented. In this paper, we extend network intelligence to also include for the first time intrusion self-defense and intruder counter-attacking.
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