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by johncolanduoni
40 days ago
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I’m not clear on who is supposed to do the translating that isn’t doing it today, or why the mapped IPv4 addresses don’t qualify. Virtually all ISPs either give you an IPv4 address or do the translation for you, and the software you write doesn’t have to care exactly how it’s set up for the most part (there’s some subtlety about stuff like MTUs, but if you’re just doing unencapsulated TCP it usually doesn’t matter). It can just use whatever comes back from DNS (including using the official mapped addresses if only an IPv4 record exists) and expect the network stack to figure it out. None of this stuff works perfectly, but it’s powering almost every mobile internet connection in the world so I don’t understand what is missing. |
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ipv6 was standardized in 1995 6to4 was standardized in 2001
6to4 is not used in any meaningful way today.
What was missing was ipv6 should have had 6to4 (but better) in it, in 1995.
Now, I could go on about what is wrong with 6to4, but every new topic is just another surface area for ipv6 proponents to launch another question (I sometimes suspect in bad faith).