IoT VLAN indeed can be annoying. It's getting better as a lot of the more "prosumer" grade routers are supporting it. I use Sonos at home too, which means I had

IoT VLAN indeed can be annoying. It's getting better as a lot of the more "prosumer" grade routers are supporting it. I use Sonos at home too, which means I had to deploy this into a VM to bridge the VLANs: https://github.com/alsmith/multicast-relay https://github.com/alsmith/multicast-relay. There are some funny (?) things that turn up too, like learning the Roku remote iOS app "discovers" devices by opening a TCP connection to every address in parallel on its local /24 (!!!). It sends out and receives mDNS packets that would tell it exactly where they are, but they are ignored by the app.