Chromecast audio groups not visible across VLAN segments
I have a Firewalla Gold and have segmented my network into multiple tagged VLANs. My personal devices (cell phones, computers, etc.) reside on the default network (untagged), but my Chromecast devices reside on a separate tagged VLAN. I am able to see my Chromecast devices via my cell phone, but I have several audio groups to allow casting audio to multiple devices at the same time. If my cell phone is on the same VLAN segment as the Chromecast devices, the devices and audio groups are visible. However, when I move my cell phone back to the default network, only the Chromecast devices themselves are visible and the groups disappear. Does anyone have any insight into what is missing to allow groups to be visible across segments?
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Firewalla has mDNS Reflector enabled. There is an article to this effect.
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I had to do some testing as my Google Chromecast and Speakers are on the same network as my devices; but I was able to reproduce issue by moving my phone to the guest network and temporarily disabling some block rules.
@Firewalla,
I can reproduce this issue on my setup as well; I can see all of my devices from another vlan, but I cannot see the groups. I'm running an older Netgear SmartSwitch, IGMP Snooping is Disabled, my switch does not appear to have MLD Snooping.
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@Firewalla
You may find this document helpful when dealing with Chromecast/Bonjour issues - UniFi - Best Practices for Managing Chromecast/Google Home on UniFi Network – Ubiquiti Networks Support and Help Center
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