I want to (multicast) stream DVB-T TV stream (5 stations, ~20 Mbps) over the (wired) network. I didn't expect the BCM hardware switch to recognize and deal with multicast, but it turns out that linux-bridge (the one that connects LAN and WLAN) doesn't do this either.

My question would be - is it possible to prevent the wired LAN multicast from overwhelming the WiFi without making LAN and WLAN separate network subnets (=taking down the linux bridge) (I want to keep that for instant fail-over for Linux clients, once I get to it ). It would be OK to filter multicast altogether and have it only on wired LAN. My googling around suggests this would need ebtables, is that correct or am I missing how the iptables and bridging in Linux works? I haven't connected any storage to the router and thus haven't installed any packages or even seen what's available.

Any ideas and helpful suggestions are appreciated.