Qing Li is a senior architect at Blue Coat Systems, Inc. leading the design and development efforts of the next-generation IPv6 enabled secure proxy appliances. Qing holds multiple US patents. Qing is a contributing author of the book titled Handbook of Networked and Embedded Control Systems published in June 2005. He is the author of the embedded systems development book titled Real-Time Concepts for Embedded Systems published in April 2003. Tatuya Jinmei Ph.D. is a senior software architect at InternetSystems Consortium, Inc. He had been a core developer of the KAME project since the launch of the project through its conclusion. In 2003, he received the Ph.D. degree from Keio University, Japan, based on his work at KAME. Keiichi Shima is a senior researcher at Internet Initiative Japan Inc. He was a core developer of the KAME project from 2001 to the end of the project and developed Mobile IPv6/NEMO Basic Support protocol stack. He is now working on the new mobility stack (the SHISA stack) for BSD operating systems.

• 1. Introduction2. The Basic Socket API—[RFC3493]3. The Advanced Socket API—[RFC3542]4. Kernel Implementation of IPv6 Socket APIs5. Socket Options and Ancillary Data Examples6. Implementation of Library Functions—libinet6