Devices in different vlans - how to add them to Shelly app?

Connect your app intermittently to the IoT VLAN and add them, if you only need the Connection sometimes

I’d stop forwarding all those packages and only access them via home assistant. Put HA on your IoT Vlan, so you don’t need to forward MQTT either. VLANs are rather pointless if your firewall looks like Swiss cheese

You could forward those ports only for those devices that need them, eg Sonos

Unfortunately I don’t know which ports Shelly uses and can’t find a documentation

I came here while trying to find an official statement about the ports the Shelly devices are using to connect to the Shelly cloud.

I was able to add the Shelly2.5 device to the Shelly app in two steps, first while being connected to the Shelly own AP and later while being on the same IOT WLAN/VLAN via the menu/discovered devices. After successful addition the app seems to use the HTTP port to connect to the device.

But it didn't want to connect to the cloud until I have opened some additional ports to my standard IOT rules (UDP53-DNS; TCP80-HTTP and TCP443-HTTPS).

Below is the full list as I have it now.

I had to open UDP123 (ntp) und TCP6011 + TCP6021. One can change to local time server via settings later.

Note: The DNS is not visible on this screenshot, it is way up on the list.

Below is a communication I could see after Shelly2.5 restart.

I have ignored the UDP5353 (multicast DNS) und UDP5683 (multicast CoAP) for now. You can read about the latter here https://github.com/alexryd/homebr…P-and-multicast

have fun

LH