Enterprise Networking: IPv6: What You Need to Know About the Move From IPv4
Out of IPv4 Addresses
On Feb. 3, 2011, the central pool of available IPv4 addresses managed by the Internet Assigned Numbers Authority (IANA) was depleted when each Regional Internet Registry (RIR) received its last IPv4 addresses. The five RIRs (AfriNIC, APNIC, ARIN, LACNIC and the RIPE NCC) will continue to allocate IPv4 address space to their members in accordance with their community-based regional policies until their pools of available IPv4 addresses are depleted. It is difficult to predict when the RIRs will run out of IPv4 addresses.
The Number Resource Organization said the world officially ran out of IPv4 addresses in February 2011, and according to the Internet Society, the reasons for moving to IPv6 vary from community to community. For example, IPv6 will unlock a range of opportunities for network operators in terms of service provision continuity, growth and innovation. In addition, it will result in network management efficiencies and savings. For hardware manufacturers, IPv6 is a key enabler of smart grids, intelligent buildings, sensor networks, and other hardwareand application-dependent innovations. As IPv6 is deployed, demand for new hardware will grow. For application developers, the promise of virtually unlimited address space is expected to spur innovation in monitoring, tracking, and remote management software and applications, to name a few. More generally, IPv6 offers simpler and more resource-efficient infrastructure management and routingfor example, removing the need for workarounds (such as network address translation) that add costs and complexity to the network; better scaling of networks and services; and a more flexible platform for the delivery of new services, all of which should encourage innovation and new product offerings, the Internet Society said. This slide show, based on Internet Society findings, looks at some of the issues around the move to IPv6.