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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.




  • Came across these HP NC522SFP 10Gb NICs

    Yeah I have one and they’re pretty good, and I haven’t had an issue using it with generic stuff.

    any 10Gb SFP switch

    Some switches from bigger companies (like the ones listed on fs.com products) are vendor locked, but you should just need a DAC cable compatible with the switch to work.

    a transceiver to get the link from the ISP to the router

    Correct! Make sure to get an ethernet/10GBase-T one, because there are other transceivers.

    would be easy enough to do some fiber runs there, and it’s all short.

    I did forget to mention that you would need more transceivers to convert between the fibre and SFP+, and they are rated for up to different lengths but they should reduce their power for shorter distances. They also come in different speeds too, but unless you’re really strapped for cash, it’s not worth it to go below 10G.

    I currently have a 300m ones doing a run of 30m, and I’m about to do a 10m run too. Also these are about AU$10-$20, I find FTLX8571D3BCLs the cheapest, but there are others. (I actually got mine for free off a guy on Reddit)



  • Also 10G is really cheap if you go with used SFP+ gear. Like I’ve got a managed 48x 1G + 4x 10G Dell switch I got for AU$78 running my network. The NICs are about US$40 used, ConnectX3s seem the cheapest, I usually use Intel X520s which are a little more (watch out for clones though).

    For the accessories: DACs are AU$20 new from fs.com, and because you’ll probably need ethernet for that router, a 10GBaseT transceiver is AU$90 new off eBay. Those you could probably buy cheaper used too.

    Additionally you wouldn’t be adding 10G to all your devices, I’d just definitely do between your router so you can have 3 1G devices maxing out your 3Gb internet, and maybe add it to a server or two.

    And if you do your own runs, in my experience, fibre is slightly cheaper for the longer runs than CAT6 itself too.