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Cake day: June 21st, 2023

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  • Is it possible to send the hint from OPNsense itself?

    Yes, to me it sounds like you’re already getting a big enough prefix from your ISP (all devices getting a /64), but you’ll have to request a bigger prefix from OPNsense. I believe it should give you the options to do this when you set the IPv6 mode to DHCPv6 on OPNsense, but I can’t say if your ISP router will handle it.


















  • my vacuum is defying discovery because of UDP crossing the subnets.

    This is likely more to do with broadcast addresses. The vacuum would be broadcasting it’s presence on its own subnet’s broadcast address (x.x.151.255), but homeassistant is only listening on it’s subnet broadcast address (x.x.150.255). As routers don’t usually let broadcasts cross subnets, I don’t think there’s a way for the host or VM to listen for them like this.

    You could setup vlans and hopefully VirtualBox supports passing through vlans, so that homeassistant would have multiple interfaces. Or like other people have said, just increase the size of the home assistant subnet so that it’ll overlap with the IoT subnet and the broadcast address would be the same, but some devices might not like responding to a device that’s on a different subnet to them, without a router.