Facilitating enforcement of security policies by and on behalf of a perimeter network security device by providing enhanced visibility into interior traffic flows
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United States of America Patent
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app pub date -
Dec 31, 2016
filing date -
Dec 31, 2016
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Abstract
Systems and methods for managing network traffic by a perimeter network security device based on internal network traffic or configuration information are provided. According to one embodiment, a network security appliance of a private network receives internal network information collected by multiple Layer 2/3 network devices of the private network. The Layer 2/3 network devices switch/route internal network traffic among multiple internal host devices without the network traffic passing through the network security device and switch/route external network traffic between the network security appliance and the internal host devices. A topology of the private network is derived based on the internal network information. Existence of potential malicious activity involving an internal host device is identified by evaluating the internal network information. Responsive thereto (i) a traffic policy is created to control transmission of network traffic associated with the internal host device; and (ii) the traffic policy is enforced.
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