Multicast on Wireless

[Victor Fabian]

I recently enabled multicast on  the wireless to a VLAN that only has one SSID(Private) but for some  reason when i go to monitor>multicast on the controller i see that  there are other clients on the from another multicast group from another VLAN (Guest)  which i didnt enable multicast on and it doesnt have the same SSID as  the other one.

I was wondering if this suppose to work this way.

Thank you

Vic

[Stephen Rodriguez · Accepted solution]

That is the IGMP list that you are seeing, so any IGMP request the WLC heard is going to be listed.

[Victor Fabian]

Stephen,

Is there way to filter that ?, because all that multicast traffic is getting to the CORE like the SSDP traffic using the 239.255.255.250 address.

Thank you

Vic

[Stephen Rodriguez · Accepted solution]

you coud ACL off the interfaces that you dont' want multicast on, and deny any 239.x.x.x in/out

[Victor Fabian]

Thanks, will do that.

Do you suggest to apply the ACL on the controllers or from the CORE ?

[George Stefanick]

Victior. personally Im not a fan of ACLs on the WLC. I would put it on the wired side... If you havent done a ACL on a controller before... Its a big PITA..