[global]
 listen-addr = 192.168.1.1
 force userspace = no
[lns default]                                                 
 local ip = 10.2.0.0
 ip range = 10.2.0.1-5
 length bit = yes                                        
 require authentication = yes              
 ppp debug = no
 pppoptfile = /usr/syno/etc/packages/VPNCenter/l2tp/options.xl2tpd