Command Information, a Herndon-based start-up firm focused on the next-generation Internet protocol, opens a new training center Wednesday to teach commercial and government clients IPv6 — the newest version of the rules that link systems across the Internet.

“The Internet that we all know and love and use everyday was designed from a technical level in the 1970s,” said Tom Patterson, founder and CEO of Command Information. “And it’s the same Internet we’ve been using ever since.”