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sandstrom

There are two recent, positive things Apple has done for IPv6:

1. They updated the Happy Eyeballs algorithm[1], which is what's caused the jump in the article.

2. Apple will mandate IPv6 support in all apps starting early 2016[2].

[1] https://www.ietf.org/mail-archive/web/v6ops/current/msg22455...

[2] https://developer.apple.com/news/?id=08282015a

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I'm curious. Does anyone know if Apples statement actually means you must fully support IPv6 or if you just can't submit an app with hardcoded IPv4 addresses?

I just tested one of our apps that uses IPv4 only domain names and it passed according to the setup here "Test for IPv6 DNS64/NAT64 Compatibility Regularly":

https://developer.apple.com/library/prerelease/ios/documenta...

"Happy Eyeballs"? Is that the official name, or another case of Apple re-branding?

"Happy Eyeballs" (aka Fast Fallback) was created and named by Dan Wing and Andrew Yourtchenko of Cisco. And yes, "Happy eyeballs" is the official name (named because of how happy the eyes of the users will be when they see how fast their IPv6 connection falls back to an IPv4 connection when connecting to a host that does not support IPv6).

https://en.wikipedia.org/wiki/Happy_Eyeballs

Happy Eyeballs is primarily designed let users with broken networks continue connecting to dual-stack web servers. In some cases, it also covers up brokenness on the server end (e.g. publishing AAAA records to nowhere), but that's arguably more of a bug than a feature.

Back in 2011, content providers were terrified of enabling IPv6, because the data showed that ~0.1% of users would drop off the map due to broken networks. Happy Eyeballs helped to break the logjam.

Nope, that's the actual title of IETF RFC 6555

https://tools.ietf.org/html/rfc6555

Does anyone know the status in Android... And if there's an open bug for this?

Android 4+ supports IPv6 on both the cellular and wireless Ethernet interfaces. It only supports stateless address auto-configuration (SLAAC), however, and does not support DHCPv6 at all. (There's a 3+ year old Android DHCPv6 bug that was declined/closed late last year for, IMHO, unconvincing reasons.)

and what about the Happy Eyeball algorithm ? does Android implement it ?

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