Subdomain proxy Local

[Rando Nakarmi]

I have regex in my  /etc/raddb/site-enabled/default authorize section as :

 if (User-Name =~ /^([^@]*)@([-A-Z0-9]+(\\.[-A-Z0-9]+)+)$/i) {
     # user has a valid-looking realm
     update request {
       Stripped-User-Name := "%{1}"
       #Realm = "%{tolower:%{2}}"
       Realm = "%{toupper:%{2}}"
        #Realm = "%{2}"
     }
   }
   else {
     # malformed NAI
     update reply {
       Reply-Message := "malformed username "
     }
     reject
}

if (Realm == example.com) {
                    update control {
                Proxy-To-Realm := LOCAL
                        }
                }
                else {
                    update control {
                       Proxy-To-Realm := DEFAULT
                     }
        }

This is working well, with example.com. but when user sends
user at a.example.com then it sends to DEFAULT which send to UPstream radius
server.

So, what shall I do a.example.com, b.example.com (valid sub-domain) not to
send upstream server ?

I tried enabling in proxy.conf
realm "~(.*\\.)*example\\.com$" {

}

no luck. any hint or point on this ?
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