interface FastEthernet0/1
 ip address 192.168.1.1 255.255.255.0

 ip nat inside
 ip virtual-reassembly
 duplex auto
 speed auto
!
interface FastEthernet0/0/0
 no ip address
 ip nat outside
 ip virtual-reassembly
 duplex auto
 speed auto
 pppoe enable
 pppoe-client dial-pool-number 1
!
interface Dialer1
 mtu 1482
 ip address negotiated
 ip nat outside
 ip virtual-reassembly
 encapsulation ppp
 dialer pool 1
 dialer-group 1
 ppp authentication pap callin
 ppp pap sent-username  username@adsl  password  hashed_pass
!
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 Dialer1

!

ip nat inside source list 100 interface Dialer1 overload
!
access-list 100 permit ip 172.16.1.0 0.0.0.255 any
dialer-list 1 protocol ip permit