this post was submitted on 16 Nov 2025
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I never raised any eyebrows at IPs like these in movies and on TV. It's just internet equivalent of fictitious phone numbers always containing 555.
Yeah by using out-of-bounds numbers they avoid accidentally listing legitimate values who might get upset or free advertising
They could just use IPv6. Legitimately values or not no one is going to understand them, much less get upset by them.
The attack was coming from ::1
Or if that's too unbelievable, fe80:: has some scary implications while also not likely to ever be a real device.
You can also use
200::/7. It's been deprecated since 2004There are already several reserved IP ranges for this kind of purpose, like 198.51.100.0/24 or 203.0.113.0/24.