topic Re: Multicast on Wireless in Wireless

Multicast on Wireless

Victor Fabian — Sun, 04 Jul 2021 03:03:01 GMT

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

Re: Multicast on Wireless

Stephen Rodriguez — Wed, 06 Apr 2011 16:18:26 GMT

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

Re: Multicast on Wireless

Victor Fabian — Wed, 06 Apr 2011 16:21:57 GMT

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

Re: Multicast on Wireless

Stephen Rodriguez — Wed, 06 Apr 2011 16:24:50 GMT

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

Re: Multicast on Wireless

Victor Fabian — Wed, 06 Apr 2011 16:26:14 GMT

Thanks, will do that.

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

Re: Multicast on Wireless

George Stefanick — Sun, 10 Apr 2011 03:31:19 GMT

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..