Just put the device on a separate wifi without internet access, or look at the “child protection” features of your router. Ours can put devices based on their MAC into “access groups” which range from “full access” over “internet from <time> to <time>” to “no internet at all”.
Luckily, most embedded devices lack the smart to attach to two networks at the same time. So you keep it locked into a network where it can only do your bidding, and it won’t listen to anyone else. Unless they built in some very crazy and nefarious code and drive around with network enabled cars in the owners neighborhood.
No need for an extra router. I just put those device into the “has no internet access” group. It is one of those “Parental Control” things. Every device inside the net can see and talk to it, but itself cannot talk to anything outside.
Just put the device on a separate wifi without internet access, or look at the “child protection” features of your router. Ours can put devices based on their MAC into “access groups” which range from “full access” over “internet from <time> to <time>” to “no internet at all”.
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Luckily, most embedded devices lack the smart to attach to two networks at the same time. So you keep it locked into a network where it can only do your bidding, and it won’t listen to anyone else. Unless they built in some very crazy and nefarious code and drive around with network enabled cars in the owners neighborhood.
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No need for an extra router. I just put those device into the “has no internet access” group. It is one of those “Parental Control” things. Every device inside the net can see and talk to it, but itself cannot talk to anything outside.
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That’s what “configuration backups” are for. You’ve got some, don’t you?
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