Virtual Private Network Controller IP Address Remapping
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Solution Overview
Problem
In a multi-cloud computing environment, interconnecting virtual private networks (VPNs) with overlapping Internet Protocol (IP) address ranges is impractical due to the high cost and time required for redeploying non-overlapping IP address ranges, which prevents efficient traffic routing between endpoints in different VPNs.
Innovation Solution
A system and method that remaps VPNs to unique, non-overlapping IP address ranges using a virtual private network controller, allowing endpoints to be assigned distinct IP addresses and enabling traffic routing between interconnected VPNs across different cloud platforms, including private and public cloud infrastructures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If VPNs with overlapping IP address ranges are interconnected, then deployment cost and time are reduced, but traffic routing becomes impossible due to IP address collisions
Solution Approach 1:
The patent introduces a VPN controller as an intermediary component that manages IP address translation and routing between multiple VPNs. The controller maintains mapping tables that translate IP addresses from one VPN to another, enabling traffic routing between VPNs with overlapping address ranges without requiring physical network reconfiguration or redeployment.
2Reliability
If non-overlapping IP address ranges are assigned to all VPNs, then traffic routing is enabled, but deployment complexity and cost increase due to required redeployment
Solution Approach 1:
The patent dynamically changes IP address parameters through translation rather than fixed assignment. The VPN controller maintains mapping tables that translate IP addresses on-demand, allowing VPNs to use overlapping address ranges while maintaining proper routing. This eliminates the need for static non-overlapping address assignments and reduces deployment complexity.
3Reliability
If IP address translation is implemented between VPNs, then traffic routing is enabled, but system complexity increases due to additional mapping and routing mechanisms
Solution Approach 1:
The VPN controller performs multiple functions including IP address translation, routing decisions, and mapping table maintenance through a single unified component. This multi-functional approach consolidates complexity into one manageable system rather than requiring separate translation devices and routing mechanisms for each VPN connection.
Data Source
AI summary
A method for interconnecting two or more virtual private networks in a hybrid multi-cloud computing environment. The method may include remapping a first virtual private network to a first Internet Protocol address range that does not overlap with a second Internet Protocol address range of a second virtual private network. The remapping may include assigning, to a first endpoint in the first virtual private network, a first Internet Protocol address that differs from a second Internet Protocol address of a second endpoint in the second virtual private network. Traffic between the first virtual private network, the second virtual private network, and/or a third virtual private network may be routed based at least on the first Internet Protocol address range and the second Internet Protocol address range. Related systems and articles of manufacture, including computer program products, are also provided.