Internet Protocol Version 6: Federal Agencies Need to Plan for Transition and Manage Security Risks

What are the global implications of the looming shortage of Internet addresses and the slow deployment of the new IPv6 protocol designed to solve this problem? The Internet has reached a critical point. The world is running out of Internet addresses. There is a finite supply of approximately 4.3 billion Internet Protocol (IP) addresses—the unique binary numbers required for every exchange of information over the Internet—within the Internet's prevailing technical architecture (IPv4). In the 1990s the Internet standards community selected a new protocol (IPv6) that would expand the number of Internet addresses exponentially—to 340 undecillion addresses. Despite a decade of predictions about imminent global conversion, IPv6 adoption has barely begun. Protocol Politics examines what's at stake politically, economically, and technically in the selection and adoption of a new Internet protocol. Laura DeNardis's key insight is that protocols are political. IPv6 intersects with provocative topics including Internet civil liberties, US military objectives, globalization, institutional power struggles, and the promise of global democratic freedoms. DeNardis offers recommendations for Internet standards governance, based not only on technical concerns but on principles of openness and transparency, and examines the global implications of looming Internet address scarcity versus the slow deployment of the new protocol designed to solve this problem.

The Internet protocol (IP) provides the addressing mechanism that defines how and where information such as text, voice, and video move across interconnected networks. Internet protocol version 4 (IPv4), which is widely used today, may not be able to accommodate the increasing number of global users and devices that are connecting to the Internet. As a result, IP version 6 (IPv6) was developed to increase the amount of available IP address space. It is gaining momentum globally from regions with limited address space. GAO was asked to (1) describe the key characteristics of IPv6; (2) identify the key planning considerations for federal agencies in transitioning to IPv6; and (3) determine the progress made by the Department of Defense (DOD) and other major agencies to transition to IPv6.

GAO-05-471 Internet Protocol Version 6: Federal Agencies Need to Plan for Transition and Manage Security Risks