In reality, IPv4 is already outdated. With global IP addresses at their limit, it’s best to make the shift to IPv6 sooner rather than later. But what are the costs of switching? With F5 Networks BIG-IP Carrier Grade NAT (CGNAT), not much. The shrinking number of available Internet Protocol version 4 (IPv4) addresses and the exploding number of devices that require access to the Internet means that service providers are under pressure to transition from the universal IPv4 standard to the newer IPv6. Not only do service providers need to make the transition to IPv6 in order to take advantage of benefits such as auto configuration, simpler route tables, and IPSec, but they must also do so while still supporting IPv4. F5 Networks provides seamless support for both IPv4 and IPv6 networks, enabling service providers to transparently manage application delivery.
There are many reasons for this, including the shrinking number of available IPv4 addresses and the number of devices that require access to Internet applications and services. Although the IPv6 standard includes new features beyond the unlimited new address space, the world still runs largely on IPv4. As new network technologies continue to drive users toward what will eventually be an all IPv6 network, service providers will need to be ready to adapt, manage, and support a dual network architecture for the duration of the transition. To properly handle the burden of introducing and supporting IPv6, service providers need a smart migration plan and tools to help provide an orderly transition between the two standards. These tools should give the organization the freedom to test, move, and migrate its existing infrastructure at a controlled, secure, and manageable pace.
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Managing IPv4 Address Depletion And Migrating To IPv6
Service providers face two primary challenges with their IP address space: the exhaustion of IPv4 addresses and the transition to IPv6 addresses. Evident for years now, the situation has steadily worsened with sustained subscriber growth, device proliferation, and the rise of always on connections. To mitigate short-term IPv4 address exhaustion while developing longer term plans for IPv6, many service providers first implement a Carrier-Grade Network Address Translation (CGNAT) solution in their core networks. These solutions relieve the constraints in available IPv4 addresses by enabling translation between private and public IPv4 addresses and public IPv4 addresses in N:1 or 1:1 configurations. However, service providers are not able to simply flip a switch to make all applications, services, and equipment IPv6-capable and ignore IPv4 because customers and Internet content will inevitably continue to run on IPv4 for years to come.
F5 Networks BIG-IP Carrier Grade NAT
The F5 Networks BIG-IP Carrier Grade NAT SDN solution provides a high-performance, scalable CGNAT solution for IPv4 address translation. The BIG-IP Carrier Grade NAT solution also functions as a native IPv4 to IPv6 gateway for advanced services. By managing application delivery in both networking topologies. Service providers can support IPv4 address mitigation and simultaneously migrate clients and servers to IPv6 networks — at strategic points of control at the core network or in the data center. Specifically, the BIG-IP Carrier Grade NAT platform provides the following; IPv4 and IPv6 Dual Stack. NAT44 and NAT444 translation between private IPv4 addresses and public IPv4 addresses in N:1 or 1:1 configurations. NAPT (PAT) to use both private IPv4 addresses and specific port numbers during translations in order to exponentially scale available source addresses. With BIG IP Carrier Grade NAT get a deterministic NAT capability that maps private IP addresses to public IP addresses and reduces logging requirements.
F5 Networks BIG-IP Carrier Grade NAT
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