On 17/10/2017 19:58, Sten Carlsen wrote:
I use subclass for keeping a list of devices that are allowed to be
given an address and depending on the class they match, they will be
given a gateway or not (I want some devices to NOT be able to
communicate to the Internet). Devices that do not belong to any class
are given an address in a different subnet with no routing to the
general network.
You should look at host reservations. You can define host reservations
that consist of a mac address and a class name. Kea will pick the
reservation and then assign the device to a class (or classes).
You can then specify a class and routers option for it. Just don't
specify any expression for it. The only way for a client to be assigned
to that class would be through matching host reservation.
I don't find an equivalent to this in Kea, so how would be the best way
to translate my subclass statements to "something" in Kea?
There's no specific equivalent of subclasses. Years ago I was told that
subsclasses were developed as a workaround for the class limitations.
Kea's implementation of classes is in principle more flexible (e.g.
there are no limits to how many classes a packet could belong), so it's
unlikely that subclasses would ever be implemented.
Today I use a separate file for defining all the subclass members and
include that in the main configuration file, so I only edit that file
when a new device is added. Can a file be included into the main
configuration in Kea?
Sure, you can do that. Put host reservations in separate file and
include it, as Jason suggested.
At some day in the future I expect to use a MySql database as the main
storage, but not right now. The future also brings ipV6 configuration.
This will scale up nicely once you start using MySQL (or Postgres) as
you can keep host reservations in those DBs.
Tomek
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