multicast unreachable on same subnet?

[julxu]

Greeting

I have a simple multicasting problem, but is so difficult to me.

two machine plug into a cat6500, same vlan and same subnet. the subnet is no routing.

host configuration is:

interface GigabitEthernet12/12

switchport

switchport access vlan 111

switchport mode access

mls qos vlan-based

flowcontrol send off

spanning-tree portfast

do I need configure any multicast feature to make two machine can taling in multicast enviroment?

Any comments will be appreciated

Thanks in advance

[markausten · Accepted solution]

If the receiver is not sending an IGMP join you need to turn of IGMP Snooping.

[Harold Ritter · Accepted solution]

Good point. Or you could also configure an IGMP querier, which will be more efficient as multicast traffic wll not be flooded on all ports for that vlan. Refer to the following document for more information on how to configure an IGMP querier.

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/configuration/guide/snooigmp.html#wp1069655

Regards

[Harold Ritter · Accepted solution]

Julie,

You shouldn't need to enable anything for it to work.

Regards