Multicast Routing on RB450g

I use this link:
http://wiki.mikrotik.com/wiki/Multicast_Routing_in_RouterOS_3.x

But i can’t config my router RB450g, I need config multicast routing (use IPTV 224.20.20.1-65).
I have:
1 -wan1 - ip 89...33
2 -local1 - 172.20.1.18/27
3 -local2 - 172.20.1.48/27
4 -local3 - 172.20.1.78/27
5 -local4 - 172.20.1.108/27

Need Help!
From wan1 need config Multicast Routing to local1,local2,local3,local4

Thanks.

hi, have you solved?

if you are not planning to send streams i would suggest to look at igmp-proxy feature. It uses a lot less resources and is suitable for simple network topologies.

http://wiki.mikrotik.com/wiki/IGMP-Proxy

I will start a test eith IPTV via VLC server.

Anyone can help me?