pptp:                                                                           
 set radius /etc/radius.conf
 set ifaddr 192.168.0.1 192.168.1.1-192.168.1.200
 enable chap
 set rad_service_type 11
 set vpn on
 set rad_alive 120
 set ip-up /etc/ppp/shape.ppp
 set ip-down /etc/ppp/shape.ppp