Multi-service VPN Client Dynamic Protocol Failover
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Solution Overview
Problem
The increasing use of cellular mobile devices for computer data services poses challenges for enterprises in enabling secure and easy connectivity, particularly due to misconfiguration issues that can lead to security risks and network conflicts, making it difficult for IT staff to provide seamless access across various devices and locations.
Innovation Solution
A secure VPN gateway system that includes a multi-service network client on cellular mobile devices, enabling secure, anytime/anywhere connectivity by using a VPN handler that dynamically switches between SSL and IPSec protocols and incorporates a security manager for anti-virus and spyware detection, along with an acceleration service for improved data access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple security and connectivity software applications are added to mobile devices, then security coverage is improved, but device complexity and network conflicts increase
Solution Approach 1:
The patent combines multiple security functions (anti-virus, spyware detection, firewall, compliance checking) and VPN connectivity into a single integrated client application. This unified architecture reduces the number of separate software components on the device, simplifying management while maintaining comprehensive security coverage through coordinated modules working together within one application framework.
Solution Approach 2:
The client application is designed as a universal platform that performs multiple functions: establishing VPN connections, detecting viruses and spyware, enforcing security policies, and managing device compliance. This multi-functional design eliminates the need for multiple specialized applications, reducing overall system complexity while providing comprehensive security and connectivity services.
2Adaptability or versatility
If users are given full configuration capabilities, then device functionality is improved, but misconfiguration risks and security vulnerabilities increase
Solution Approach 1:
The system implements automated configuration management where the client application automatically configures VPN connections, security settings, and policy enforcement based on predefined templates and enterprise policies. This self-service approach eliminates the need for manual user configuration, preventing misconfiguration risks while maintaining adaptability through automated policy-based adjustments tailored to each device and user context.
Solution Approach 2:
The client continuously monitors device state, connection status, and policy compliance, providing real-time feedback to automatically adjust configurations. This feedback mechanism ensures that any deviations from secure configurations are detected and corrected automatically, maintaining both flexibility and security without requiring user intervention.
3Reliability
If IT staff manually configure each device, then connectivity reliability is improved, but administrative time and operational costs increase
Solution Approach 1:
The system pre-configures VPN connection parameters, security policies, and compliance rules on the server side before deployment. When the client is installed on a device, it automatically receives and applies these pre-configured settings, ensuring reliable connectivity from the outset without requiring manual IT staff intervention for each device. This preliminary configuration approach maintains consistency and reliability across all devices while dramatically reducing administrative time.
4Reliability
If automatic protocol switching is implemented, then connection reliability is improved, but system complexity increases
Solution Approach 1:
The VPN client implements dynamic protocol selection that automatically switches between SSL and IPSec protocols based on real-time network conditions, device capabilities, and security requirements. This dynamic adaptation ensures reliable connectivity across varying environments without requiring manual configuration or user awareness of protocol details. The system monitors connection status and automatically transitions protocols when needed, maintaining reliability while managing complexity through automated decision-making algorithms.
Data Source
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AI summary
An integrated, multi-service network client for cellular mobile devices is described. The multi-service network client can be deployed as a single software package on cellular mobile network devices to provide integrated services including secure enterprise virtual private network (VPN) connectivity, acceleration, security management including monitored and enforced endpoint compliance, and collaboration services. Once installed on the cellular mobile device, the multi-service client establishes the VPN connection to concurrently include both a layer three (L3) tunnel that uses a first type of transport layer protocol of the operating system and a layer four (L4) tunnel that uses a second type of transport layer protocol of the operating system. The VPN handler determines whether network ports associated with the L3 tunnel are unblocked by an operating system and, when the network ports are unblocked, automatically transitions from the L4 tunnel to the L3 tunnel without terminating the VPN connection.