Wireless Network Security Interface Segmentation via SSID Mapping
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Solution Overview
Problem
Current wireless local area networks (WLANs) lack the ability to segment user security levels at the lower layer, relying on higher-level security procedures due to identical access granted to all client devices with the same SSID and password, which compromises network security.
Innovation Solution
Implementing a network device that establishes multiple wireless networks with unique identifiers, maps these identifiers to security zones, and segments client device privileges accordingly, enabling discrete security interfaces and policy-based processing of network traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single wireless network with common SSID and password is used, then ease of operation is improved, but network security deteriorates due to inability to segment user security levels
Solution Approach 1:
The patent divides a single wireless network into multiple virtual networks (VLANs) with different SSIDs. Each SSID is assigned to a specific VLAN ID, enabling segmentation of users into different security zones (e.g., guest users, employees, executives) while maintaining a unified physical infrastructure. This resolves the contradiction by providing both ease of operation (single SSID configuration) and network security (segmented access control).
Solution Approach 2:
The patent applies different security policies and access controls to different SSIDs/VLANs based on their specific security requirements. Each virtual network can have customized authentication methods, encryption levels, and resource access permissions, allowing local quality differentiation while maintaining overall system coherence.
2Reliability
If multiple wireless networks with different SSIDs are established, then network security is improved through segmentation, but device complexity increases
Solution Approach 1:
The patent implements a universal SSID-to-VLAN mapping mechanism that enables a single wireless access point to handle multiple virtual networks simultaneously. The system provides multi-functionality by supporting both traditional single-SSID configurations and advanced multi-SSID segmented configurations, reducing the need for separate physical infrastructure for each security zone.
Solution Approach 2:
The patent introduces an intermediary mapping table that associates SSIDs with VLAN IDs and security policies. This intermediary layer simplifies configuration by automatically translating user-selected SSIDs into appropriate VLAN assignments and security rule applications, reducing the complexity burden on network administrators.
3Reliability
If higher-level security procedures are used, then network security is maintained, but security effectiveness deteriorates due to lack of lower-layer segmentation
Solution Approach 1:
The patent implements segmentation at the data link layer (Layer 2) through VLAN assignment, creating isolated broadcast domains and security zones. This lower-layer segmentation prevents lateral movement of threats between user groups and reduces the attack surface, making the network more resilient to security breaches without relying solely on higher-layer application security controls.
Solution Approach 2:
The patent applies different security zone assignments to different SSIDs, creating localized security perimeters. Each VLAN can have customized security policies, access control lists, and encryption requirements tailored to specific user groups' security needs, providing targeted security protection rather than uniform high-level security procedures.
Data Source
AI summary
A number of wireless networks are established by a network device, each wireless network having an identifier. Requests are received from client devices to establish wireless network sessions via the wireless networks using the identifiers. Network privileges of the client devices are segmented into discrete security interfaces based on the identifier used to establish each wireless network session.