submitted 4 months ago by peregus@lemmy.world to c/homeassistant@lemmy.world

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I've a VLAN dedicated to IoT devices and, of course, HA can't discover them. Is it possible have them discovered by HA via MQTT? Create them manually it's a pita because they're a lot and I would have to create sensors/switches + battery level + RSSI Thanks!

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[-] thr0w4w4y2@sh.itjust.works 18 points 4 months ago

is there a reason you can’t put your HA in that VLAN too? if it’s a segregated, non-networked environment then why not create a second network adapter for your HA and give it an address in that VLAN too?

[-] jet@hackertalks.com 11 points 4 months ago

This is the right way!

VLANs typically can only cross communicate via the gateway, most broadcast discovery protocols don't get routed via the gateway (because its not considered local), and while you can get the gateway to repeat some traffic, its very brittle... lots of network stack developers made assumptions about broadcast packets being on the local network segment.

[-] peregus@lemmy.world 5 points 4 months ago

Well, I haven't thought about it, I can't see any drawback. Thanks!

[-] peregus@lemmy.world 2 points 4 months ago

I've added an extra NIC that is in the IoT VLAN, but there are no new devices. The NIC is ok, because I see that it gets the IP from the router. What can I check/run?

[-] thr0w4w4y2@sh.itjust.works 1 points 4 months ago

can you ping one of the IoT devices from the HA device on that new NIC?

can you manually add a device and HA see it/add it normally?

is there a firewall routing between HA and the IoT devices that might be blocking discovery somehow?

[-] peregus@lemmy.world 1 points 4 months ago

I can ping the devices. No firewall, the NIC is directly in the VLAN and the Proxmox firewall is off. How can I add a device manually? ...I'm just starting with HA.

this post was submitted on 18 Jul 2024

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