set serial console to ask for login


New Around Here
I build Asus Merlin from source. I'm renting the apartment. Tenants will have physical access to the router.
Can I modify the router so that it asks for login on serial console?
Is there any way to protect nvram contents (ppoe internet access account) being read from the bootloader command line?
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Part of the Furniture
I doubt you could do that. You would have to modify the CFE rather than the firmware and I don't believe there's any source code for that.

Given that the hostile tenant would have to physically open up the router to connect to the serial port (which seems incredibly unlikely) you could put tamper proof stickers on the case. At least then it would be obvious if it had been opened an in itself might act as a deterrent.

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