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A comment on I spent a week without IPv4 (2023). Parent comment

Re:I spent a week without IPv4 (2023) by koakuma-chan on Saturday December 20, 2025 @03:11PM (#46339161)
It's not just ":: is all zeroes"
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Re:I spent a week without IPv4 (2023) by ninkendo on Saturday December 20, 2025 @03:24PM (#46339310)
… such as?
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Re:I spent a week without IPv4 (2023) by DaSHacka on Saturday December 20, 2025 @04:06PM (#46339636)
https://news.ycombinator.com/item?id=46338674
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Re:I spent a week without IPv4 (2023) by WarOnPrivacy on Saturday December 20, 2025 @05:25PM (#46340217)
I am not clear what your point is. The parent's point stands. A double colon only represents zeros (that were compressed and are not displayed).

Your link does not show different addresses from a valid compression, it shows different addresses from an invalid compression. The link examples what we don't do.

Conversely, if we compress the expanded addresses in your link, we will get 2 different compressed addresses.

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Re:I spent a week without IPv4 (2023) by Dylan16807 on Saturday December 20, 2025 @06:09PM (#46340561)
That's a post about invalid things that are not IPv6 addresses.

In IPv6 addresses, :: is all zeroes and there's no ambiguity.

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