Network Address Translation for Cloud Security
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Solution Overview
Problem
In private cloud environments, connecting public networks to client networks poses security and efficiency challenges due to potential IP address conflicts and exposure of cloud servers to external networks, requiring time-consuming workarounds and security scans.
Innovation Solution
A network address translating system using multiple NAT devices to modify IP addresses and ports of data packets, allowing secure and efficient communication between clients and cloud servers by translating private IP addresses to avoid conflicts and enhance security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cloud services are connected to the client network, then communication efficiency is improved, but security risks increase due to potential exposure of cloud servers to external networks
Solution Approach 1:
The patent introduces a Network Address Translation (NAT) device as an intermediary between the cloud service network and the client network. This NAT device translates private IP addresses to public IP addresses, enabling secure communication while preventing direct exposure of cloud servers to external networks. The NAT device acts as a buffer that maintains connectivity while mitigating security risks.
2Ease of manufacture
If cloud services use the same private network segment as the client, then deployment simplicity is improved, but IP address conflicts occur
Solution Approach 1:
The patent applies IP address translation that dynamically changes the network segment parameters. The NAT device translates private IP addresses from the cloud service network to different public IP addresses, allowing the cloud service to use the same private network segment as the client without conflicts. This parameter transformation resolves the contradiction between deployment simplicity and IP address reliability.
3Object-affected harmful factors
If security scans and corrections are performed before connecting cloud services, then security is improved, but time consumption increases
Solution Approach 1:
The patent implements preliminary security measures by configuring the NAT device with predefined security rules and address translation mappings before the cloud service connection is established. This preliminary configuration of security parameters and translation tables eliminates the need for time-consuming security scans during deployment, as security is built-in from the outset.
Data Source
AI summary
A method of translating network addresses includes defining a service address including a first IP address for a server. The server actually uses a service address including a second IP address. A packet originating from a client is received, the target address of the packet being the first IP address. The destination address of the packet is changed from the first IP address to a third IP address. The destination address of the packet is then changed from the third IP address to the second IP address. The first packet is then sent to the server. The present disclosure also provides a system for implementing the method of translating network address. The security of data transmission is improved while resolving IP network segment conflicts.