Freeradius 3.x - CoA proxy and dynamic-client

Alan DeKok aland at
Tue Sep 1 14:08:59 CEST 2020

On Sep 1, 2020, at 8:04 AM, Alex <allexander.alex at> wrote:
> the java module is outside the network. the network is segmented, so java
> module cannot talk directly to the clients. it's also a requirement to
> preserve it.

  So have the Java system talk to something on the FreeRADIUS server.  It doesn't have to be RADIUS.

  If you insist on RADIUS, then have the Java system send CoA packets to FreeRADIUS.  Those packets can contain the "real" IP of the client.  You can then make FreeRADIUS run radclient, via "exec"

  See the exec module for details.  You'll want to configure it so that it does *not* wait for a response from the client.

>>  v3 doesn't support dynamic home servers.
> are they supported in version 2? i can change the fronted version as i like.

  No, they're not supported in v2 either.

  Alan DeKok.

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