Interface Groups for Network Security Rule Simplification
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Solution Overview
Problem
Current network security systems face inefficiencies and complexity in configuring security rules for firewalls, particularly when managing traffic flows across multiple interfaces, which can lead to potential network leaks and increased maintenance burdens for administrators.
Innovation Solution
The system allows network administrators to designate a proper subset of interfaces as source and destination interfaces for security rules, enabling the definition of traffic flows with multiple source and destination interfaces within a single rule, reducing the need for full mesh configurations and simplifying rule management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple rules are configured in full mesh to control traffic between multiple interfaces, then traffic control coverage is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent merges multiple full mesh rules into a single rule by introducing interface groups. Instead of configuring separate rules for each interface pair, administrators can define a rule that applies to multiple interfaces simultaneously by referencing interface groups, thereby reducing rule set complexity while maintaining comprehensive traffic control coverage.
Solution Approach 2:
The patent creates universal interface groups that can be referenced by multiple rules and apply to multiple interfaces. This multi-functional construct allows a single rule to control traffic across numerous interface combinations, eliminating the need for numerous specific rules and simplifying the overall configuration.
2Reliability
If multiple rules are configured in full mesh to control traffic between multiple interfaces, then traffic control coverage is improved, but ease of operation deteriorates
Solution Approach 1:
The patent combines multiple interface-specific rules into a single unified rule by using interface groups. This merging approach allows administrators to configure traffic control for multiple interfaces in one action rather than creating numerous individual rules, significantly improving configuration convenience while maintaining complete traffic control coverage.
Solution Approach 2:
The patent introduces interface groups as intermediary constructs between administrators and individual interface rules. These groups serve as mediators that simplify the configuration process by allowing administrators to work with logical groups of interfaces rather than managing each interface separately, thereby improving ease of operation.
3Manufacturing precision
If zones are designated as source and destination to control traffic between multiple interfaces, then traffic control precision is improved, but device complexity increases
Solution Approach 1:
The patent enhances the zone concept by creating interface groups that can serve multiple functions: they provide precise traffic control like zones but also simplify rule configuration like abstracted interface references. This multi-functional approach maintains traffic control precision while reducing the complexity associated with traditional zone-based configurations.
Data Source
AI summary
Systems and methods for designating interfaces of a network security appliance as source/destination interfaces in connection with defining a security rule are provided. According to one embodiment, a security rule configuration interface is displayed through which a network administrator can specify parameters of security rules to be applied to traffic attempting to traverse the network security appliance. Information defining a traffic flow to be controlled by a security rule is received via the security rule configuration interface. The information defining the traffic flow includes: (i) a set of source interfaces; and (ii) a set of destination interfaces. At least one of which includes multiple interfaces such that the security rule permits the traffic flow to be defined in terms of multiple source interfaces and/or multiple destination interfaces.