Network Address Translation with In-Band Return Path Resolution - US Patent No. 11,695,690
The patent describes a system for managing network address translation (NAT) that enhances the efficiency and security of a data exchange environment that eliminate IP conflicts and unsecured exchange of internal addressing information for packet routing. The innovation specifically focuses on return path resolution for data packets in a NAT-enabled network environment.
Key Points:
NAT-Enabled Router: The method involves a NAT-enabled router that processes incoming and outgoing data packets. When a forward packet is received, the router records security association data and routing identifiers in a routing table.
Return Path Resolution: For a return packet, the router uses the pre-recorded security association data to determine the correct return path to the destination. This ensures that the return packet follows the same path as the forward packet, maintaining consistency and security in the data flow.
Security Association Data: This data is crucial for identifying the return path and includes information such as encryption keys and routing identifiers. It is recorded when the forward packet is received, ensuring that the return path is uniquely associated with the forward path.
Efficient Routing: By resolving the return path based on pre-recorded data, the system reduces the need for additional routing decisions, enhancing the efficiency of the network. This method minimizes latency and ensures that packets are routed accurately and securely.
Implementation: The system can be implemented in various network environments, including enterprise networks and service provider networks. It supports secure and efficient communication between different network segments.
