this post was submitted on 26 Nov 2023
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If you are seeing it in PiHole, you can just block it in PiHole, that is part of the purpose behind it. Find it in the list and select block.
This might work for some devices but it won't work for devices that phone home using IP instead of a domain.
Very few services would set themselves up this way. Putting IPs into device firmware/software limit the ability for the companies to change without rolling out updates and tracking adoption, etc.
I’d be curious to know if any common or popular devices are known to use IPs to phone home.
Agreed.
Also, if you are running PiHole, HOPEFULLY you are also running a firewall. You should be able to easily block the IP address and / or domain at that level as well.
Of course the other option, as others have mentioned, is to get rid of the default gateway so it can't access the Internet to begin with.
MS Windows uses IP addresses for some things, last I checked.