I'd really appreciate any help with the following problem below, at two of my sites. For reasons beyond me, the client requested enterprise WiFi equipment in these domestic installations. These networks use Apple AirPlay, Sonos and Lutron which depend on multicast messages to function correctly.
Router > Cisco SG200-26P > Cisco AIR-CT2504-K9
Cisco SG300-28P > 4 x Cisco AIR-CAP1602I-E-K9
There are 5 VLAN's although I do not require any inter-VLAN multicast traffic.
When wired into the LAN (either switch) I can use these devices normally. However, when connected over WiFi, no Apple devices appear on either iTunes or iPad, Sonos becomes unusable and naturally, the Lutron processor is undiscoverable.
Model No. AIR-CT2504-K9
Software Version 188.8.131.52
Monitor > Multicast
InterfaceName vlandId MGID
client and media 30 13
control 20 12
guest 40 14
management 10 0
security 50 15
I'm not using mDNS as I believe this is only required for inter-VLAN multicast linking.
If all your devices are in vlan 30, this means both the devices and the clients, then mDNS doesn't have to be used. This was the old school way of getting Apple TV's to work but one of the other requirements was to make sure multicast was enabled on the switch infrastructure and broadcast forwarding was enabled. I have got this to work with broadcast forwarding disabled but many of the guides and other threads here mentions it should be enabled. If your devices are wired and clients are wireless, that can also be an issues because support for wired and wireless is really not there yet. I know that if I have a wired PC that is using Home Sharing, it doesn't work at all. I have had better luck using Avahi as a bonjour gateway than using the WLC as one. Hate to say it, but if I put my apple devices on my Aruba lab, everything works... Wired and wireless.
Thanks for your input too. All source devices (Apple TV, Sonos & Lutron) are wired to either of the two switches in VLAN 30. The devices that cannot see these source devices are connected to the same tagged VLAN 30 over the Cisco AIR1602I WiFi AP's.
My thoughts were like yours - I've no need to make multicast devices visible across VLAN's, just work between wired and wireless mediums.
I've done many other installations using the same switches/routers but using Ruckus for WiFi without any of these problems. Strangly enough, I do have this working fine with an older installation using 7.3.xx firmware at 2600 series WiFi AP's. I'd use the same firmware but newer firmware is required for these newer 1602 WiFi AP's.