I have a stack of Powerconnect 6248s with a number of VLANs. The switch stack itself acts as a router and routes between the VLANs.
I need multicasting on one VLAN. I don't need or want the multicasting to route out of that VLAN. On that one VLAN I have many different sources and receivers starting and stopping at random. So any kind of fixed configuration would not work. If I set the VLAN to bridge multicast forward all or bridge multicast forward unregistered then every port gets the multicast. If I set the VLAN to filter unregistered multicasts, no multicasting happens.
As I understand it, this is broadcasting, not multicasting.
I have tried turning on IGMP snooping. The sources register OK. This is a simple thing to do on a CISCO switch. It just doesn't seem to work or I can't get it to work.
I just want proper multicasting working on that one VLAN.