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Bug #17051

open

pfSense configures Kea DHCP with DNS servers from System > General Setup instead of the LAN IP when CoreDNS is enabled

Added by Azamat Khakimyanov about 9 hours ago. Updated about 9 hours ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
CoreDNS
Target version:
-
Start date:
Due date:
% Done:

0%

Estimated time:
Release Notes:
Default
Affected Plus Version:
Affected Architecture:

Description

Tested on 26.10-DEVELOPMENT (built on Wed Aug 12 6:00:00 UTC 2026)

When I enabled CoreDNS, the DNS Resolver was disabled. I then deleted the DNS servers configured for the LAN interface in the Kea DHCP server settings and applied the changes. Because pfSense did not recognize CoreDNS as an active local DNS service, it populated the DNS server fields with the addresses configured under System > General Setup, displaying them as grayed-out placeholder text. These addresses were also provided to LAN clients via DHCP.

When CoreDNS is enabled, the expected default is the LAN interface IP address.

Files

DNS Servers with DNS Resolver disabled.png (197 KB) DNS Servers with DNS Resolver disabled.png Azamat Khakimyanov, 08/24/2026 10:14 AM
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 #1

Updated by Azamat Khakimyanov about 9 hours ago

  • Subject changed from When CoreDNS enabled the Kea DHCP Server copied DNS server settings from General Setup page to pfSense configures Kea DHCP with DNS servers from System > General Setup instead of the LAN IP when CoreDNS is enabled
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