IPv6 NS address fetch failures in BIND despite IPv4-only network

[sami.rahal at sofrecom.com]

Hello Greg.
Thanks for your feedback. Applying "server ::/0 { bogus yes; };" did not fix the issue - I still have "1357 IPv6 NS address fetch failed".
BR

De : Greg <greg at isc.org>
Envoyé : mardi 5 mai 2026 13:04
À : RAHAL Sami SOFRECOM <sami.rahal at sofrecom.com>
Cc : bind-users <bind-users at lists.isc.org>
Objet : Re: IPv6 NS address fetch failures in BIND despite IPv4-only network

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Hello.
There are a few techniques you could try. Some are mentioned here: https://kb.isc.org/docs/aa-00206 But a more recent one, introduced in 9.20.6, is `query-source-v6 none`.

Try some of those and see if any help in your environment.

Cheers, Greg
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