list of allowed nas clients for realm

[Matija Grabar]

I am running FreeRADIUS Version 2.1.8 with mysql as backend database in lab
environment.

I am authenticating PPP customers from two different network segments behind
two cisco NAS devices.
All PPP customers are defined in single mysql database with realm suffixes
@domain1 and @domain2.

---- start of proxy.conf ----
realm domain1 {
        type            = radius
        authhost        = LOCAL
        accthost        = LOCAL
        # allowed-nas = 1.1.1.1
        nostrip
}

realm domain2 {
        type            = radius
        authhost        = LOCAL
        accthost        = LOCAL
        # allowed-nas = 2.2.2.2
        nostrip
}

realm external {
...
}

realm external2 {
...
}
---- end of proxy.conf ----

I would like to know if there is any possible way to attach a list of
allowed NAS clients to realm domain2 for example, so that RADIUS discard
requests comming from nas 2.2.2.2 with realm @domain1?

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