opnsense/core

Reverse lookups inconsistent with dnsmasq

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#10.660 aberto em 4 de ago. de 2026

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featurehelp wanted

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Description

Important notices

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Is your feature request related to a problem? Please describe.

For ipv6, reverse lookups for hosts managed by dnsmasq are returned as a FQDN. For ipv4 leases just the hostname is returned. See this issue for more details: https://github.com/opnsense/core/issues/8633. Opening a separate ticket for this per the suggestion of an opnsense maintainer in the linked issue.

Currently this can only be made consistent with a dnsmasq config file, setting expand-hosts. It can't be controlled from the GUI.

Describe the solution you like

Consistent behaviour for reverse lookups for ipv4 and ipv6 clients, either all returned as a FQDN or not. And ideally a toggle in the dnsmasq GUI that controls whether or not lookups are returned as a FQDN.

Describe alternatives you considered

Manually setting the config, as described in the linked issue.

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