VDSL mit Cisco Routern

!
interface FastEthernet3
  description WAN to VDSL-Modem
  switchport mode trunk
!
interface Vlan7
 description VLAN fuer VDSL
 no ip address
 pppoe enable group global
 pppoe-client dial-pool-number 1
!
interface Dialer0
 ip address negotiated
 ip mtu 1452
 ip nat outside
 ip virtual-reassembly
 encapsulation ppp
 ip route-cache policy
 ip route-cache flow
 dialer pool 1
 dialer idle-timeout 0
 dialer persistent
 dialer-group 1
 ppp authentication chap pap callin
 ppp pap sent-username <user>@t-online.de password 0 <password>