Is it possible to recognize clients not by their IP addresses?

[Sebo PL]

>
> > It might be in the future. dynamic-clients virtual server works just with
> > Packet-Src-IP-Address now. There are plans to make NAS-Identifier
> > available to it as well. You will be able to set different shared
> > secrets then.
>
> I'm waiting for such NAS-ID exactly and hope it might be based on the
> SSID of the AP.

Or it may be based on
Calling-Station-Id
I see the MAC address of the AP in this attribute attached to each
message send to the radius server.