All things related to multicast

["Steve Francis" <>]

Not knowing what a Camvision2 is, I'll assume its a multicast source.

If that's true, you dont need IGMP: a multicast source just starts
multicasting, with no prior signalling.  That will cause the local router to
build the multicast tree for that source.

Alan Crosswell wrote:

> I have just learned from Litton that the Camvision2 multicast support does
> not do IGMP.  Is there an IGMP proxy available that I could use?  Am I
> correct in assuming that if I'm running pim-sm that I need IGMP to
> cause the tree to be built? I am also using Catalyst with cgmp or igmp
> snooping....
>
> I have my Littons for another 7 days before the eval runs out and
> would like to try some IP multicast now that I've "finessed" unicast.
>
> /a (still somewhat confused by most of this)