this post was submitted on 01 Aug 2025
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Just my perspective as a controls (SCADA engineer):
I work for a large power company. We have close to 100 sites, each with hundreds of IP devices, and have never had a problem with ipv4. Especially when im out in the field I love being able to check IPs, calculate gateways, etc at a glance. Ipv6 is just completely freaking unreadable.
I see the value of outward-facing ipv6 devices (i.e. devices on the internet), considering we are out of ipv4s. But I don't see why we have to convert private networks to ipv6. Put more bluntly: at least industry, it just isn't gonna happen for decades (if it ever does). Unless you need more IPs it's just worse to work with. And there's a huge amount of inertia- got one singular device that doesn't talk ipv6 at a given generation site? What are you supposed to do?
If you set up your DNS correctly then you don't even need the IPs. Just give devices unique, human-readable names and maybe do separate sub-domains for each site or something.
For that to work industrial devices have to support DNS in the first place…
Oh, now that you mention it I've never tried to map a static DNS entry to a device without DNS. Welp, time to get thousands of raspberry pi's to act as IP KVMs!
That would imply en existence of display/usb outputs…
We’re essentially talking a bunch of embedded devices talking to each other. You can give them all the dns entries you want, but if they (or the programming environment) don’t support DNS lookup you might as well put your dns server in excel.
The microcomputers (raspberry pi, arduino, whatever) could have a modern network interface and relay the communication to the embedded devices over oldschool serial. But yeah, straight DNS wouldn't work. I like the idea though, gonna start posting my 10 favorite IP addresses on a piece of paper on the fridge. Who needs excel!