> >Deprecate IPV6_V6ONLY, add IPV6_ACCEPTV4MAPPED option
> >
> > Then the IPv6 sockets would have to be explicitly allowed to accept
> > IPv4 connections. So the programs that use the IPv6 centric way have
> > to be modified a bit, but the buggy implementations and the unworkable
> > one could be corrected without losing features. Just making
> > IPV6_V6ONLY default to on would have the same results.
>
> I really love to see this happen (polarity change is enough).
> also, if IPv4 mapped address support becomes optional (explicitly)
> to OS implementers it would be much better.
In hindsight I agree that the default should have been different - forcing
applications to explicitly request use of IPv4-mapped addresses on AF_INET6
sockets.
But I suspect that folks have different opinions on the cost of changing
the default at this point in time :-(
Erik
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