в конфиге такое
[radius]
dictionary=/usr/share/accel-ppp/radius/dictionary
nas-ip-address=
192.168.1.1server=
192.168.1.2,pass,auth-port=0,req-limit=50,fail-timeout=0,max-fail=0,acct-timeout=0,weight=1
server=
192.168.1.2,pass,acct-port=0,req-limit=0,fail-timeout=0,max-fail=0,acct-timeout=0,weight=1
dae-server=
192.168.1.1:3799,pass
verbose=0
attr-tunnel-type=NAS-Identifier
timeout=10
max-try=9