Cisco Technology, Inc.

Rajamathangi Subramanian

Janakiraman Senthilnathan

Christopher J Skowronek

Prakash Babu

Arun Seshadri

Jed Kaplan

Eric Albin Voit

David A Maluf

The disclosed technology addresses the need in the art for systems and methods of dynamic but stateless NAT encryption and decryption. The disclosed technology provides a robust encryption/decryption algorithm for concurrently obfuscating source and destination IPv6 addresses for SNAP deployments with 100% reversal and zero collisions, thereby providing protection to both the source and destination IPv6 simultaneously.

Method to achieve dynamic NAT66 encryption and decryption

A system and method for providing network and port address translation is provided. A global IP address and a block (chunk) of ports are allocated for each mobile subscriber (MS) on first data connection. Subsequent data connections from the same MS are assigned the same IP address and a new port from this block. The mapping information is communicated, processed, and stored once for the complete block, instead of for every new data connection. This process reduces processing, communication, and storage requirements.

Port chunk allocation in network address translation

Growing community of inventors

Duluth, GA, United States of America

Rajamathangi Subramanian