OPNsense Forum

English Forums => 25.7, 25.10 Series => Topic started by: +DS_DV+ on January 17, 2026, 11:13:29 AM

Title: What is the official migration way from ISC to Kea?
Post by: +DS_DV+ on January 17, 2026, 11:13:29 AM
Hi all <3,

in the recent patchnotes (https://forum.opnsense.org/index.php?topic=50138.0) it was mentioned that ISC should be removed some time in the future:
QuoteThe changes are otherwise clustered around preparation for the major upgrade
which brings an number of fundamental changes with the ongoing removal of
ISC-DHCP from core.

So i looked for a migration button but did not see one.
As the title of this thread suggests i am wondering what OPNsense plans as a migration tool?
or is there a planned way from OPNsense for all the existing installations?

with kind regards
Title: Re: What is the official migration way from ISC to Kea?
Post by: sopex8260 on January 17, 2026, 11:35:23 AM
On 26.1 in 10 - 15 days... ISC will leave the core opnsense and become a plugin. From there, you can migrate to dnsmasq or Kea
Title: Re: What is the official migration way from ISC to Kea?
Post by: Seimus on January 17, 2026, 12:59:26 PM
ISC will not be removed from the system it will just be moved from the core as a standalone packages as mentioned above.
You can still use ISC, it will work fine, just make sure after the movement of ISC the ISC package is installed.

About the migration, there is no tool, and honestly not sure if there will be one. You will have to plan it yourself and decide if to mvoe to KEA or DNSMASQ.

Check the documentation so you know what are the benefits negatives and how to do it
https://docs.opnsense.org/manual/dhcp.html

Regards,
S.
Title: Re: What is the official migration way from ISC to Kea?
Post by: meyergru on January 17, 2026, 01:03:03 PM
There is no automatic migration. You can set up your new DHCP server of choice (Kea or DNSmasp) according to the documentation.

The only thing that warrants non-manual setup is the static reversations IMHO, and those you can export as CSV and import to either Kea or DNSmasq.