[sgjohnson]

Are you aware of what SLAAC does? For the most part your scan results are going to be useless in <24h

[mike_d]

https://www.rfc-editor.org/rfc/rfc7707#section-4

But in general devices using SLAAC are not typically the things you are looking for when scanning.

[maxmouchet]

Hosts with randomized addresses are likely to have auto-generated PTR records, or none at all, so for the purpose of rDNS resolution those are not a big issue.

And that’s a detail, but SLAAC as in RFC4842 is deterministic. The randomization is introduced by the privacy extensions in RFC4941.