Virtual Network Device Cloud Address Translation
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Solution Overview
Problem
Current techniques for providing secure cloud-based communications fail to establish effective network address translation for packets requiring inner payload changes, leading to resource consumption and failed connections between endpoint and public server devices.
Innovation Solution
A virtual network device identifies a cloud provider, requests and receives public and private network addresses, generates a translation table, and uses it to translate source network addresses and control messages, enabling secure communication between endpoint and server devices by mapping public to private addresses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current techniques are used for providing secure cloud-based communications, then resource consumption is reduced, but secure communication establishment fails for packets requiring inner payload changes
Solution Approach 1:
The patent introduces an application layer gateway as an intermediary component that sits between the network device and endpoint devices. This gateway performs application layer processing and inner payload network address translation, mediating the communication between devices with different address schemes (private vs public IP addresses) and enabling secure cloud-based communications that current techniques cannot establish
2Manufacturing precision
If network address translation is performed without translation table, then device complexity is reduced, but translation precision is insufficient for secure communications
Solution Approach 1:
The patent implements preliminary action by pre-establishing a translation table that maps public IP addresses to private IP addresses before communication occurs. The application layer gateway uses this pre-computed translation table to perform accurate inner payload address translation, ensuring translation precision required for secure communications while avoiding complex real-time address calculation
3Measurement precision
If translation table is generated and maintained, then address translation accuracy is improved, but computing and storage resources are consumed
Solution Approach 1:
The application layer gateway performs self-service by automatically generating and maintaining the translation table without requiring manual configuration or external intervention. The gateway monitors communication patterns and dynamically updates the translation table, reducing the need for centralized management while maintaining high address mapping accuracy through localized intelligence
Data Source
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AI summary
A virtual network device may identify a cloud provider associated with the virtual network device, and may provide a request for public network addresses and private network addresses associated with the cloud provider. The virtual network device may receive the public network addresses and the private network addresses from the cloud provider based on the request, and may generate a translation table that maps the public network addresses and the private network addresses. The virtual network device may utilize the translation table to establish a secure communication between an endpoint device and a server device, where the secure communication is associated with at least one packet that requires an inner payload network address change.