[nsp] multicast questions

[Charles Sprickman]

Anyone?  It's not like I'm asking about ipv6... :)

On Mon, 3 May 2004, Charles Sprickman wrote:

> Hi,
>
> I've got a few questions about multicast, mostly Cisco, but there's some
> other issues that perhaps some of you have dealt with.
>
> First issue, does anyone know if RBE (used for bridged DSL circuits coming
> in on an ATM line) passes multicast?  Meaning, does it look like a LAN to
> multiple hosts in the same subnet that are all bridged?  From what I can
> see so far it seems not, but it would be very helpful if someone could
> confirm that.
>
> The second issue is more generic, and I apologize for bringing this to
> -nsp, but I have to imagine some of you have done this before.
>
> I need to make multicast "work" for a group of 10 DSL lines.  I thought
> this would be simple; just bridge all of them using RBE and be done with
> it.  The server is Window Media server on W2K Server.  It seems it will
> not allow any multicast stations to be defined unless you enable the W2K
> routing services and setup IGMP.  However, if you do this, the stream is
> not available on the "local" all-hosts or all-routers IPs; it's off in
> it's own little range.  So that complicates things.
>
> So now I'm at a loss.  The multicast support on DSL CPE routers seems a
> bit dodgy, and for the most part completely undocumented by the vendor
> (Netopia and Zyxel are the choices).  And since I don't know what RBE does
> with multicast, I may need a router at all sites.  Argh.  Any pointers to
> how to setup the Cisco that terminates all these connections to handle
> this scenario?
>
> I've had little luck finding a good high-traffic multicast list,
> especially one that will even touch a question that veers into the windows
> world.
>
> Any help at all is appreciated, even a pointer to another good list.
>
> Thanks,
>
> Charles
>
> --
> Charles Sprickman
> spork at inch.com
>
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