Service providers incur additional operational and administrative costs by continuing to support the legacy IPv4 network while the industry continues migrating to IPv6. The IMS used by some service providers is compatible with IPv6 only. IP Multimedia Core Network Subsystem (IMS) allows services such as multimedia SMS messaging and Voice over LTE (VoLTE) to be delivered over IP. Due to the limited supply of IPv4 addresses, IPv6 support is required in order for 4G deployment to be scalable. The fourth generation of mobile telecommunication technology (4G) is based on packet switching only. Provides faster routing through the network by using simplified headersĪvoids broadcasting for neighbor address resolution For example, IPv6:Īvoids the need for network address translation (NAT) IPv6 More Efficient than IPv4Īside from solving for the IPv4 depletion problem, IPv6 is more efficient than IPv4. The American Registry for Internet Numbers (ARIN) is projected to run out of IPv4 addresses in the summer of 2015-a countdown is available here. However, on January 31, 2011, the top-level pool of Internet Assigned Numbers Authority (IANA) IPv4 addresses was officially exhausted. Technologies such as Classless Inter-Domain Routing (CIDR) and network address translation (NAT) helped delay the inevitable. To see recent trends, visit the World IPv6 Launch website.įor decades, the world has known that IPv4 addresses would eventually be depleted. Note: World IPv6 Launch is an organization that tracks deployment activity at a global scale. Major network service providers, including major cellular carriers in the the United States, are actively promoting and deploying IPv6. Refer to RFC4038: Application Aspects of IPv6 Transition.
#CONNECT AN APPLE TV TO A MAC PRO VIA ETHERNET FOR PRIVATE INTERNET ACCESS VPN CODE#
If you’re writing a server-side app or other low-level networking app, you need to make sure your socket code works correctly with both IPv4 and IPv6 addresses. For information on CFNetwork, see CFNetwork Framework Reference. See Avoid Resolving DNS Names Before Connecting to a Host to learn how. If you aren’t connecting by name, you probably should be.
If you’re writing a client-side app using high-level networking APIs such as NSURLSession and the CFNetwork frameworks and you connect by name, you should not need to change anything for your app to work with IPv6 addresses. Depending on the nature of your app, the transition has different implications: A DNS64/NAT64 network is an IPv6-only network that continues to provide access to IPv4 content through translation.
With IPv4 address pool exhaustion imminent, enterprise and cellular providers are increasingly deploying IPv6 DNS64 and NAT64 networks. Next Previous Supporting IPv6 DNS64/NAT64 Networks
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