Multi-Path VPN Configuration for Resilient Encrypted Connectivity
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Solution Overview
Problem
VPN services face challenges in ensuring resilient and automatically recovering encrypted tunnel connections, particularly in multiple point-to-point links between VPN users and providers, due to vulnerabilities in existing infrastructure and lack of redundancy, which can lead to service disruptions and privacy breaches.
Innovation Solution
Implementing a multi-path VPN configuration that splits network traffic into multiple connections using regular IP stack routing techniques, establishing two or more active VPN tunnels between users and providers to distribute traffic across multiple VPN endpoints, ensuring that client devices always maintain encrypted connections and avoid single points of failure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single VPN tunnel is used to connect user to provider, then the configuration is simple and easy to operate, but the system lacks redundancy and is vulnerable to service disruptions
Solution Approach 1:
The patent segments the VPN connection into multiple independent tunnels (primary and secondary) between the user device and VPN provider. Each tunnel operates independently with its own routing, allowing the system to maintain connectivity through at least one functional tunnel even when others fail, thereby improving reliability without requiring complete reconfiguration.
Solution Approach 2:
The patent implements dynamic tunnel management where the system automatically monitors tunnel health and switches between primary and secondary tunnels based on real-time conditions. This dynamic behavior allows the VPN configuration to adapt to changing network conditions, maintaining reliability while keeping the user interface relatively simple through automated operations.
2Reliability
If multiple VPN tunnels are established to distribute traffic, then redundancy and availability are enhanced, but the routing configuration and traffic management become more complex
Solution Approach 1:
The patent implements self-service mechanisms where the VPN client automatically performs tunnel establishment, health monitoring, and failover operations without user intervention. The system autonomously manages the complexity of multiple tunnel configurations by implementing automatic routing decisions and tunnel selection based on predefined policies and real-time status, thereby maintaining ease of operation while achieving high availability.
Solution Approach 2:
The patent incorporates feedback mechanisms that continuously monitor tunnel health metrics and automatically adjust traffic routing based on observed conditions. The system uses feedback from tunnel performance monitoring to dynamically switch between tunnels, ensuring optimal availability while simplifying operation through automated decision-making based on real-time feedback loops.
3Productivity
If automatic failover between VPN tunnels is implemented, then service continuity is maintained, but the monitoring and control mechanisms become more complex
Solution Approach 1:
The patent implements preliminary action by pre-configuring multiple VPN tunnels and establishing failover policies before service disruptions occur. The system proactively sets up the infrastructure for automatic failover, including predefined routing rules and tunnel priority assignments, so that when failures occur, the switch between tunnels can happen automatically without complex real-time decision-making, thereby maintaining productivity while limiting monitoring complexity.
Data Source
AI summary
The present embodiment relates to method and system for establishing, by an individual VPN customer or a plurality of VPN customers, a multi-path failure-resistant connectivity to a VPN service while ensuring no unencrypted customer traffic is ever exposed in a public network. The additional aspects of the method and system disclosed is the constant connectivity assessment executed and the automatically triggered recovery mechanism incorporated.