BEIJING — In an otherwise nondescript conference room, Wu Jianping stands before a giant wall of frosted glass. He toggles a switch and the glass becomes transparent, looking down on an imposing network operations center full of large computer displays. They show maps of China and the world, pinpointing China’s IPv6 links, the next generation of the Internet.

China already has almost twice the number of Internet users as in the United States, and Dr. Wu, a computer scientist and director of the Chinese Educational and Research Network, points out that his nation is moving more quickly than any other in the world to deploy the new protocol.

IPv6 — Internet Protocol version 6 — offers advanced security and privacy options, but more important, many more I.P. addresses, whose supply on the present Internet (IPv4) is almost exhausted.

“China must move to IPv6,” Dr. Wu said. “In the U.S., some people don’t believe it’s urgent, but we believe it’s urgent.”