Dynamic VPN Dual-Proxy Routing for Network Topology Hiding
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Solution Overview
Problem
Traditional VPN solutions expose the internal network topologies of end nodes, compromising security and privacy by requiring manual configuration and direct communication using local IP addresses.
Innovation Solution
The Dynamic VPN (DVPN) dual-proxy method enables application-level content routing by providing a secure tunnel between VPN nodes without disclosing actual IP addresses, using DVPN proxy servers to route requests and responses as if they were local, maintaining network opacity and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional VPN solutions are used to connect remote sites, then secure communication can be established, but the internal network topologies of end nodes are exposed
Solution Approach 1:
The patent introduces a central VPN gateway as an intermediary between client nodes and resource nodes. This gateway acts as a mediator that knows the topology of both networks but keeps this information hidden from the end nodes themselves. The gateway performs translation and routing functions while maintaining network opacity, thus enabling secure communication without exposing internal topologies to the nodes.
Solution Approach 2:
The patent segments the VPN architecture into distinct functional components: client nodes, resource nodes, and a central VPN gateway. This segmentation separates the topology knowledge (held by the gateway) from the end nodes, allowing secure communication to be established while preventing topology exposure at the node level. The gateway handles all topology-related operations independently.
2Reliability
If manual configuration is required for VPN connectivity, then secure tunnels can be established, but operational complexity and costs increase
Solution Approach 1:
The patent implements self-service capabilities where client nodes automatically discover and connect to resource nodes through the VPN gateway without manual configuration. The gateway maintains automatic translation tables and routing information, allowing nodes to communicate autonomously. This eliminates the need for manual topology configuration at node levels while maintaining secure tunnel establishment.
Solution Approach 2:
The patent introduces dynamic translation tables at the VPN gateway that automatically adapt to changing network conditions. Rather than static manual configurations, the system dynamically updates routing information and translation mappings based on real-time connectivity status, reducing operational complexity while maintaining reliable secure connections.
3Productivity
If direct IP address communication is used between nodes, then routing is simple, but network security and privacy are compromised
Solution Approach 1:
The VPN gateway serves as an intermediary that translates between private IP addresses used by nodes and public routing addresses used on the network. This translation mechanism maintains routing simplicity at the node level (nodes only need their private IPs) while implementing security and privacy through the gateway's controlled translation and routing functions.
Solution Approach 2:
The patent creates virtual copies of network addresses through the translation mechanism. Private IP addresses are mapped to virtual representations that the gateway manages, allowing nodes to communicate using simplified local addresses while the gateway handles the complex address translation and security functions, thus maintaining simplicity without compromising security.
Data Source
AI summary
A method of application level content routing using a (Dynamic VPN) dual-proxy mechanism that provides a client access to resources on a remote network without exposing each other's actual IP addresses and network topologies. The method includes providing a client a list of available resources on a remote network; initiating a request by the client for at least one resource from the list of available resources hosted on the remote network as though the at least one resource is local to the client; routing the request to the at least remote resource through a secure connection between the client and the remote network; responding to the request by the at least remote resource as though the request is initiated locally on the remote network; and routing the response from the remote network back to the client through the secure connection.