Fwd: Bind radius client requests to a database

[Ti Ti]

HI've the following freeradius configuration that I use to bind radius
clients to a specific db. The problem is that I use a virtual radius
associated to every db and I would avoid this. Is that possible to have a
single radius instance listening and forward the request to db using radius
client password (eventually contained in the nas table)?


server rad1 {
 listen {
    ipaddr = *
    port = 1820
    type = auth
 }

 listen {
    ipaddr = *
    port = 1821
    type = acct
 }

 authorize {
    db_rad_1
    dailycounter_db_rad_1
    noresetcounter_db_rad_1
    preprocess
    chap
    mschap
    digest
    suffix
    eap {
       ok = return
    }
    files
    expiration
    logintime
    pap
    totalbytecounter_db_rad_1{
      reject = 1
    }
    if(reject){
      update reply {
          Reply-Message := \"SESSION TERMINATED - YOUR TICKET IS EXPIRED\"
      }
      reject
    }
 }

 authenticate {
    Auth-Type PAP {
       pap
    }
    Auth-Type CHAP {
       chap
    }
    Auth-Type MS-CHAP {
       mschap
    }
    digest
    eap
 }

 preacct {
    preprocess
    acct_unique
    suffix
    files
 }

 accounting {
    db_rad_1
    exec
    attr_filter.accounting_response
 }

 session {
    db_rad_1
 }

 post-auth {
    exec
    Post-Auth-Type REJECT {
      db_rad_1
      attr_filter.access_reject
    }
 }

 pre-proxy {
 }

 post-proxy {
    eap
 }

}

sql db_rad_1 {
   database = "mysql"
   driver = "rlm_sql_${database}"
   dialect = "mysql"
   server = "localhost"
   port = 3306
   login = "test"
   password = "test"
   radius_db = "radius1"
   acct_table1 = "radacct"
   acct_table2 = "radacct"
   postauth_table = "radpostauth"
   authcheck_table = "radcheck"
   authreply_table = "radreply"
   groupcheck_table = "radgroupcheck"
   groupreply_table = "radgroupreply"
   usergroup_table = "radusergroup"
   delete_stale_sessions = yes
   sqltrace = no
   sqltracefile = ${logdir}/sqltrace.sql
   num_sql_socks = ${thread[pool].max_servers}
   connect_failure_retry_delay = 60
   lifetime = 0
   max_queries = 0
   group_attribute = "${.:instance}-SQL-Group"
   read_clients = yes
   client_table = "nas"
   $INCLUDE ${modconfdir}/${.:name}/main/${dialect}/queries.conf
}