[dns-wg] DNS reverse configuration
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Carsten Strotmann
carsten at strotmann.de
Wed Oct 6 11:28:32 CEST 2021
Hello Gilles, On 6 Oct 2021, at 8:45, ANTONETTI Gilles wrote: > Dear Support, > > My question is related to reverse DNS configuration. > We are LIR for an organization (administration) owning a /16. > 2 DNS servers of this organization have delegation for reverse > requests. > > Due to IPv4 addresses exhaustion, we have dedicated the last /24 to > another organization (administration). The /24 is already used. > Now the problem is that the (owner) organization doesn't want to host > our reverse records for the last /24. > > So, my question is it possible to declare 2 different DNS for > delegation only for the /24 ? > yes, it's possible. The solution is documented in RFC 2317 "Classless IN-ADDR.ARPA delegation" (https://datatracker.ietf.org/doc/html/rfc2317). It's a little bit tricky to understand but it works well. Greetings Carsten Strotmann
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