DHCP

[Rodrigo Prieto]

Thanks, Alan, for replying. I’ll check what you mentioned and use nsupdate to
update the zones. If at some point it has native support for DDNS, it would
be great — implementing it in a local network by combining AAA + DHCP would
be a two-in-one solution.

Regarding the configuration, it keeps the same logic as how FreeRADIUS is
configured: enable the dhcp site, the modules, and import the database.
For a simple configuration, using dhcp_common would already work. For
something more advanced, dhcp_files and dhcp_passwd.
I really liked the configuration style. The rlm_sqlippool tool doesn’t come
by default in the FreeRADIUS repositories, but it’s very useful and easy to
use for generating pools in SQL.

Regards.
------------------------------

Do you want me to also make a more polished English version so it sounds
more natural?
Dijiste:
Si
ChatGPT dijo:

Here’s a more polished and natural version in English:
------------------------------

Thanks for your reply, Alan. I’ll look into what you suggested and use
nsupdate to update the zones. If native DDNS support is added in the
future, that would be great — implementing it in a local network by
combining AAA and DHCP would be a convenient all-in-one solution.

As for the configuration, it follows the same logic as FreeRADIUS: enable
the dhcp site, load the necessary modules, and import the database.
For a basic setup, dhcp_common is enough to get it running. For a more
advanced setup, you can use dhcp_files and dhcp_passwd.
I really like the configuration approach. The rlm_sqlippool module isn’t
included by default in the FreeRADIUS repositories, but it’s very useful
and easy to use for generating SQL-based IP pools.

Best regards.

El dom., 3 de agosto de 2025 09:34, Alan DeKok via Freeradius-Users <
freeradius-users at lists.freeradius.org> escribió:

> On Aug 3, 2025, at 7:42 AM, Rodrigo Prieto <rodrigoprieto2019 at gmail.com>
> wrote:
> >
> > Hello, I wanted to know if there is any way to configure the DHCP server
> to
> > send DDNS updates to a Bind9 server, similar to how Kea updates the
> forward
> > and reverse zones. I am testing the DHCP server function and it is easier
> > to configure than Kea — with medium-complexity configurations, Kea
> already
> > requires a large JSON file — so I am looking into this alternative.
>
>   That's good to hear.  I found Kea confusing, limited, and hard to
> configure.   FreeRADIUS was easier, but that's perhaps my bias.
>
>   The server doesn't have native support for DDNS.  But you can run a
> shell program to do the update.  See mods-available/echo for an example.
>
>   Alan DeKok.
>
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