911
We don't talk about IPv5
(lemmy.world)
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this post was submitted on 01 Aug 2025
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C’mon, IPv4 has so many problems. Sure, let’s reserve a whole /8 for a single loopback address, that’s efficient. 🙄
Well of course, how else would you trick script kiddies that figured out when they DDOSed 127.0.0.1 and learned what a loop back was, and get them again in a few weeks with "ok ok my real address is 127.34.21.2"
Wait... I know 127.0.0.1 but what's the second one?
A /8 subnet is basically everything after the first of the four segments, e.g. 127.*.*.*. marine_mustang was saying that loopback (what you think of as only 127.0.0.1) is actually an entire subnet, so any address that starts with 127 will hit the loopback interface. TIL, never thought about it much before.