5G mobile networks, expected to serve delay-sensitive applications like autonomous vehicles, won't work with IPv4 either, said Yoon Mingeun, an emerging technology project manager at SK Telecom.
Apple will push IPv6 yet again early next year when it requires all apps submitted to its App Store to support the protocol. That will help to foster IPv6-only operation, eventually cutting down on the need for any IPv4 at all.
That could mean a lot of coding for apps that don't yet support IPv6, said Haroon Khan, an engineer at HealthExpense, a SaaS provider for health insurance claims and billing. Many elements of back-end software would need to be modified to add IPv6 capability, he said.
IPv6 should do some good through benefits like network simplification, Khan said. But it will also change the way developers work. In IT shops that reuse IPv4 addresses internally, programmers get to know certain addresses so well that they just type them into code from memory. With IPv6, everything can have its own unique Internet address. And in any case, the new addresses, at 128 bits, are too large to ever memorize, he said.
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