Hi! First: Sorry for my bad english. I have a issue:
I have RB750 with bridge interface including 4 ethernet ports and one EoIP tunnel. One of the ethernet ports is eth1-gateway. On the other ethernet ports I attached Set Top Boxes for IPTV. The problem is - when I attach the first STB the traffic is approx. 3Mb/s on the all interfaces in the bridge. When I attaches the second STB the traffic becomes approx. 6-7Mb/s on the all interfaces in the bridge. In this case on the EoIP tunnel passes traffic that I don’t use on the other side. On the other side over the tunnel I have another STB which needs from 3 to 10Mb/s. When all of the STB’s works the traffic through the tunnel becomes above 14-15Mb/s. Is there a way the traffic to be separate for all ethernet ports and in the same time all interfaces to be in the one bridge? I hope I was clear 
Look at bridge filters:
http://wiki.mikrotik.com/wiki/Manual:Interface/Bridge#Bridge_Packet_Filter
Or stop bridging and start routing.
May be I have to drop the package between interfaces?
@jarda - wont it be more difficult to route IPTV traffic to STB?
Or don’t even let them show up.
I don’t think so. Have a look here.
Just implemented this at a client of mine for exactly the same reason. Took me 5 minutes and works like a charm.
-Chris
I tried to drop traffic between interfaces but nothing 
Now I attached the screenshot.
EoIP-real is the real tunnel to remote STB. On the ether5 there is nothing, interface is up, but there is no real traffic. On the eoip-fake tunnel is the same - there is nothing to remote side and there is no real traffic. But on the both interfaces I see the traffic which is on the eoip-real. When I attaches the second STB on the the ether2 (when i send it to the same bridge - IPTV), the traffic inceaces to 6Mb/s on the all interfaces (eoip-real, eoip-fake, ether5, ether2).
This is my /interfaces bridge filter print
0 chain=forward action=drop in-interface=eoip-fake out-interface=ether5 log=n>
log-prefix=“”1 chain=forward action=drop in-interface=ether5 out-interface=eoip-fake log=n>
log-prefix=“”2 chain=forward action=drop in-interface=eoip-real out-interface=ether5 log=n>
log-prefix=“”3 chain=forward action=drop in-interface=ether5 out-interface=eoip-real log=n>
log-prefix=“”4 chain=forward action=drop in-interface=eoip-fake
out-interface=!ether1-gateway log=no log-prefix=“”5 chain=forward action=drop in-interface=!ether1-gateway
out-interface=eoip-fake log=no log-prefix=“”6 chain=forward action=drop in-interface=!ether1-gateway
out-interface=eoip-real log=no log-prefix=“”7 chain=forward action=drop in-interface=eoip-real
ОК, cdiedrich. I will try IGMP Proxy. All interfaces must be not on the bridge, right? And what about if there is unicast traffic for Internet?
Right.
I’d setup a second network for the STBs and remove their interfaces from the bridge.
Routing between those networks and the internet will easily be handled by your router
-Chris
Hmm! I didn’t understand exactly how to set up second network for STB only. Could you explain me, please?
IGMP proxy didn’t help me, unfortunately. I set ether1 as upstream port, and then added the other ethernet and EoIP ports to IGMP proxy but there is no traffic at all - neither to some STB, nor to EoIP tunnel. I removed the ports from the BRIDGE interface before do it this.