hapci#sh run
!
vpdn enable
!
vpdn-group ipv6_csco
 request-dialin
  protocol l2tp
  domain ipv6_csco
 initiate-to ip 10.1.3.1
 source-ip 10.1.4.1
 local name hapci
!
vpdn-group ipv6_jnpr
 request-dialin
  protocol l2tp
  domain ipv6_jnpr
 initiate-to ip 10.1.1.1
 source-ip 10.1.4.1
 local name hapci
!
bba-group pppoe ipv6
 virtual-template 10
!
interface Loopback1
 ip address 10.1.4.1 255.255.255.0
!
interface Ethernet0/0.3501
 encapsulation dot1Q 3501
 ip address 10.2.1.4 255.255.255.0
!
interface Ethernet0/0.3504
 encapsulation dot1Q 3504
 pppoe enable group ipv6
!
interface Virtual-Template10
 no ip address
 ip mtu 1492
 no peer default ip address
 ppp authentication chap pap
!
end