>>>>> On Mon, 11 Mar 2002 14:32:31 -0600 (CST),
>>>>> Lilian Fernandes <[EMAIL PROTECTED]> said:
> The advanced API does not address this yet....is there any way at all to
> currently join an IPv4 multicast group on an AF_INET6 socket?
There's no such a *standardized* way, as far as I know.
> Or do applications need to open a separate AF_INET socket to join v4
> groups?
If you want portability, I believe the answer is yes.
I'm even not sure if we really should allow the usage of
IPv4-mapped-multicast. We had a very heated discussion even for
unicast addresses, and we were almost not able to reach consensus. At
that time, one of main arguments to support the usage of IPv4-mapped
addresses was existing implementations and easy-porting of
widely-deployed unicast IPv4 applications. I don't believe the
argument buys that much for multicast addresses/applications.
In any case, I don't think the advanced API is a suitable place to
define such a stuff. Since the basic API defines both IPV6_JOIN_GROUP
and the usage of IPv4-mapped(-unicast) addresses, the appropriate
document would also be the basic API spec, *if we'd ever need to
standardize that*. We should not use the advanced API as a kitchen
sink for arbitrary extensions.
JINMEI, Tatuya
Communication Platform Lab.
Corporate R&D Center, Toshiba Corp.
[EMAIL PROTECTED]
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