Yes. The American Registry for Internet Numbers (ARIN) stopped the general allocation of IPv4 addresses on September 24, 2015. In order to sustain current users and any future growth, migrating to IPv6 is inevitable for service providers. In addition to the exhaustion of the IPv4 address space, the emerging trend of the Internet of Things (IoT) is expected to cause the number of connected devices to cross 20 billion by the end of this decade, increasing the demand for even more IP addresses.
IPv4 addresses are in a 32 bit format, which means there are approximately 4.3 billion IPv4 addresses. That sounded like a lot when the protocol was first developed in the 1970s, but with over 7 billion people in the world, and an influx of new IP-enabled devices, it is not nearly enough for the future.

By contrast, IPv6 addresses are in a 128 bit format. This allows for 340 undecillion numbers. How many is that? It’s 340 followed by 36 zeros. That’s enough to give an IP address to every atom on the surface of the earth and still have enough left over for 100 more earths.

Yes, but only if you have enough IPv4 addresses to get you to the point when there is no IPv4 content left on the Internet. Since IPv6 is not backward compatible with IPv4, service providers must have a way for their customers to reach content hosted on networks that have not yet made the transition to IPv6. If you switch to IPv6 before all IPv4 content is gone you will still need to run your network in “dual-stack” mode, which still requires that you give every subscriber an IPv4 address in addition to an IPv6 address. If you start to run short on IPv4 addresses your options are to buy more IPv4 addresses from a broker at market prices, or implement CGNAT, which will greatly extend the like of your IPv4 address space.
We don’t know. There are a lot of stand-alone servers and hosting providers out there, and there is no set date when they must migrate to IPv6. There is also no pressure for them to do so. The pressure is on the service provider to make sure that their subscribers can get to all content on the Internet, whether it is IPv4 content or IPv6 content. It may be ten years or more before all content providers finally make the move to IPv6. In the meantime, if your customers cannot get to any remaining IPv4 content they will blame you, not the content provider.
Carrier Grade NAT allows you to conserve the IPv4 addresses you have, giving you time to make the transition to IPv6. These solutions allow service providers to extend the lifetime of their current IPv4 infrastructure while also allowing for transitions to newer IPv6 infrastructure. This gains the service provider time to plan their IPv6 transition strategy.

Also, networks often require different transition technologies to be deployed simultaneously. These solutions allow you to deploy each transition technology concurrently. For example, you could start with CGNAT to immediately mitigate IPv4 address exhaustion, and then phase in NAT64/DNS64 to enable IPv6 clients to access the IPv4 Internet when you are ready.

CGNAT will easily support an allocation ratio of up to 128:1, where each IPv4 address can be used by up to 128 subscribers. So, with that ratio you can support over 32,000 subscribers with only one Class-C IPv4 IP assignment, which is 256 IPv4 addresses.
No. Our Carrier Grade NAT solutions can support up to 256 million concurrent sessions. Also, unlike some NAT deployments, our CGNAT solutions include application level gateways that ensure applications like VoIP, Skype, and online gaming will keep working for your subscribers.
Some NAT solutions make it very challenging to find out who was using an IP address at any given time. Our solutions eliminate the need to search large address translation logs that could contain terabytes of data, making it much easier to respond to law enforcement requests.
CGNAT and IPv4/ IPv6 translations is a resource intensive process and requires dedicated, high-performance hardware as part of the basic architecture. Payload inspection, protocol-aware gateways and IPv4 to IPv6 transition techniques put a strain on CPU and memory resources on traditional router products. Our solutions are designed to provide CGNAT, so are significantly more efficient and consume much less power and cooling when compared to traditional IP router-based CGNAT solutions. We offer two options that are deployed on dedicated hardware. One is an appliance-based solution where we install CGNAT software on standard X86 hardware that we spec based on your network throughput needs. We also can provide A10 Network’s CGNAT solution with their own proprietary hardware. In either case you can start with CGNAT to immediately mitigate IPv4 address exhaustion and then phase in NAT64/DNS64 to enable IPv6 devices to access the IPv4-based Internet.

IPv6 removes the IP address scarcity by creating a new address space with vastly more potential addresses. IPv6 also provides many other benefits to service providers and end-users, such as improved efficiency, security, simplicity and Quality of Service (QoS), which IPv4 doesn’t have.

Our hardware-based solutions have hot swap redundant power supplies, solid state drives, Lights Out Management (LOM/IPMI) and Error Correcting Code (ECC) memory. The only moving parts are the fans, which are also hot swappable. Our appliance solution is based on standard hardware designed to be highly redundant and used in an Active – Standby pair for high availability. In either case, we highly recommend deploying redundant boxes. When deployed in high-availability pairs if a link is cut there is an immediate failover from one device to the other.
No. The American Registry for Internet Numbers (ARIN) is the location for requesting IPv6 addresses. But, our CGNAT solutions provide options for transitioning to IPv6 so that you can roll-out IPv6 on your network when you are ready. You can click the link above and follow the process steps including how to determine how much IPv6 address space you need.

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