Link MAC adress to user after 1st login

[Alan DeKok]

"Jurgen van Vliet" <jurgen at wanbound.com> wrote:
> At the 1st login of a client, the MAC adress is put into the database
> At all next logins, if the MAC adress of that client does not match the
> allready recorded MAC adress the login gets rejected.

  Run a script at first login to put the MAC address into the DB.

> I presume the MAC adress of the client requesting authentication is a
> variable in freeradius ? 

  Usually Calling-Station-Id.

> My question is how/where do I put the check if the MAC allready is registred
> and if the current MAC matches the registred one ?

  See the documentation for rlm_sql.  It includes examples.

  Alan DeKok.
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