[FFmpeg-devel] [PATCH v2] avformat: enable UDP IPv6 multicast interface selection using zone index

[Lynne]

Apr 29, 2024, 11:56 by remi at remlab.net:

>
>
> Le 29 avril 2024 11:20:24 GMT+03:00, Lynne <dev at lynne.ee> a écrit :
>
>>> >They were they deprecated?
>>>
>>> They caused more bugs than they solved problems (because what we need is to add IPv6 to IPv4 apps, not IPv4 to IPv6 apps).
>>>
> >What bugs did they cause?
>
> Obviously anything that assumes IPv6 semantics is prone to breaking.
>
>> i know they're not very well used, because the
>>
> >documentation is very lacking,
>
> No, they're not used because they are officially deprecated for 15+ years (see RFC5156).
>

The RFC says that IPv4-Compatible addresses are deprecated,
but doesn't say that about IPv4-Mapped addresses.

The kernel would have dropped support for them if that had happened,
they started doing a cleanup of the whole stack a year ago and even
dropped UDP-Lite.