ip local pool ipool 10.99.98.8 10.99.98.254
interface virtual-template 1
 ip address 10.99.98.1 255.255.255.252
 peer default ip address pool ipool
 encapsulation ppp
vpdn enable
vpdn-group l2tpin
 accept-dialin
  virtual-template 1
  protocol l2tp
  no l2tp tunnel authentication