Dynamic Traffic Inspection Pipelines for Zero Trust Networks
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Solution Overview
Problem
Traditional traffic forwarding and inspection methods utilize static configurations that are not dynamically configurable for specific types of traffic, leading to increased security risks in zero trust networks where the perimeter has extended to the Internet, especially with mobile users accessing cloud-based applications.
Innovation Solution
A dynamically reconfigurable traffic inspection pipeline that intercepts and inspects traffic based on its characteristics, allowing dynamic addition or removal of inspection stages, and is managed through control messages exchanged between traffic forwarding services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional static traffic inspection configurations are used, then device complexity is reduced, but adaptability to specific traffic types deteriorates
Solution Approach 1:
The patent implements dynamic traffic inspection configurations where the inspection pipeline stages are automatically adjusted based on traffic characteristics. The system transitions from static pre-defined inspection chains to dynamic, traffic-type-specific configurations that are created on-demand, allowing the system to adapt to new traffic patterns without manual reconfiguration.
Solution Approach 2:
The system changes inspection parameters dynamically by selecting different inspection stages (e.g., deep packet inspection, application layer inspection) based on traffic characteristics. The inspection depth, methods, and parameters are adjusted according to the detected traffic type, enabling optimized inspection for each scenario without requiring complex manual configuration.
2Adaptability or versatility
If dynamic traffic inspection pipelines are implemented, then adaptability to traffic characteristics improves, but device complexity increases
Solution Approach 1:
The system performs self-service by automatically detecting traffic characteristics and selecting appropriate inspection stages without requiring manual intervention. The traffic inspection system autonomously creates, modifies, and manages inspection pipelines based on real-time traffic analysis, eliminating the need for complex manual configuration while maintaining high adaptability.
Solution Approach 2:
The inspection pipeline is segmented into distinct, modular stages (e.g., classification stage, decryption stage, inspection stage, transformation stage) that can be independently selected and combined. This segmentation allows the system to build custom inspection flows by combining simple modular units, reducing overall configuration complexity while maintaining flexibility.
3Reliability
If multiple inspection stages are added to inspect encrypted traffic, then security inspection capability improves, but processing time increases
Solution Approach 1:
The system applies partial inspection actions by selecting only the necessary inspection stages based on traffic characteristics. Instead of always performing full deep packet inspection, the system performs partial inspection (e.g., header inspection only) for low-risk traffic and reserves full inspection for high-risk traffic, reducing processing time while maintaining security capability.
Solution Approach 2:
The system performs preliminary traffic classification and risk assessment before initiating full inspection. By pre-evaluating traffic characteristics and preparing inspection pipelines in advance, the system can quickly execute the appropriate inspection stages without unnecessary delays, balancing security thoroughness with processing speed.
Data Source
AI summary
Systems and methods for a dynamically reconfigurable traffic inspection pipeline in zero trust networks. Methods include steps of intercepting traffic traversing through a zero trust network to a destination; determining one or more traffic inspection stages to utilize for inspecting the traffic based on the characteristics of the traffic; creating a traffic inspection pipeline including the one or more traffic inspection stages; and performing the one or more traffic inspection stages on the traffic through the traffic inspection pipeline. The steps can include dynamically adding or removing traffic inspection stages in the traffic inspection pipeline after performing a traffic inspection stage.