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    SubjectRe: Booting 2.5.63 vs 2.4.20 I can read multicast data
    > On Tuesday,  4 March 2003, wrote:
    > > The apps I have vlc, and mpeg2dec (with mods) cannot read multicast
    > > data under 2.5.63, but both work under 2.4.20.
    > >
    > > I also have some PERL tools which do multicasting stuff and they don't
    > > work any longer either.
    > >
    > > However, I added 'eth0' to the IO::Socket::Multicast::mcast_add()
    > > call and now the data is showing up.
    > >
    > > I believe this means back in the C/C++ paradigm you can't rely on
    > > INADDR_ANY to do the right thing. So you may have to set the specific
    > > IP of the interface you want your multicast data to come from in
    > > imr_interface.s_addr of the struct ip_mreq you pass in via setsockopt(
    > > sock, IPPROTO_IP, IP_ADD_MEMBERSHIP, ...
    > >
    > > I'll give this a try and let you know what I find.
    On Wed, Mar 05, 2003 at 09:25:20AM +0100, Niels den Otter wrote:
    > But lot of multicast applications use INADDR_ANY and most don't provide
    > an option to choose a specific interface. So I really think that the
    > kernel should bind the application to an ethernet interface and not to
    > the loopback interface to make them work.

    I have to agree that the kernel is broke. After further reading
    the expected behavior looks well defined, and the apps along
    with my code are designed properly.

    > Can you please check if it tries to bind to the loopback interface when
    > using INADDR_ANY by checking 'netstat -n -g' output?

    I will do my best to give it a try.

    Brian Litzinger
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