multicasting in 3com 5500

[sshoaib]

I am trying to enable multicasting in a 3com stack 5500 between 2 vlans (at this moment no other switches involved).

I have enabled multi cast routing - multicast routing enable

Then I enabled pim sm on the 2 vlan interface. Is there anything else I need to do?

Basically I am trying to setup Lan schools for remote view over the vlans. So far I have no success. 

Acccording to LAN school - they use 239.0.208.0/24 for multicasting. As I select channel 3 for LAN school multicast will use 239.0.208.1. It also use multicast port 796 - as the 2 test machine are on a domain network firewall is disabled by for it.

Is there anything else I am missing?

Thanks  

[ISoliman]

IGMP snooping under the VLANs so that the join requests is processed, you have to enable IGMP in all the switches under these 2 vlans, try with one switch and see.