[anti-abuse-wg] Reverse DNS delegations

On Sat 06/Apr/2024 19:54:27 +0200 Randy Bush wrote:
>>>> Why isn't it possible to gain a delegation by proving number 
>>>> assignment?
>>> Because your ISP can't be bothered.
>> Is such unbotherability legitimate?
> 
> these years, it is one of the things when considering a provider from 
> which one gets address space.
>
> part of the problem is that this used not to be the case.  "rdns is not 
> really useful" was the common thought.  so many isps did not pay it much 
> attention.  now, more and more services are using rdns mapping to defend 
> against crapola.  so it has become useful, and quite needed in some 
> cases.
>
> but it is notalways easy to justify to management the costs of cleaning 
> it up, often involving your provider, sometimes your provider's 
> provider, and on up the chain.


RIPE could at least reproach those LIRs that have an inet6num but no rDNS 
delegation to it.

BTW, how should one search DB objects like 2.0.a.2.ip6.arpa?  I can search it 
in the DNS but not in https://apps.db.ripe.net/db-web-ui/query


Best
Ale
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