PPPoE - Dynamic

no ip dhcp use vrf connected
ip dhcp excluded-address 172.24.20.1 172.24.20.99
!
ip dhcp pool LAN
   import all
   network 172.24.20.0 255.255.255.0
   default-router 172.24.20.1
   dns-server XXX.XXX.XXX.XXX
!
!
ip name-server XXX.XXX.XXX.XXX
vpdn enable
!
!
username admin password 7 PASSWORD
!
!
!
!
interface FastEthernet0/0
 description "WAN_PPPoE"
 no ip address
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 no ip mroute-cache
 duplex auto
 speed auto
 pppoe enable
 pppoe-client dial-pool-number 1
 no cdp enable
!
interface FastEthernet0/1
 description "Office_LAN"
 ip address 172.24.20.1 255.255.255.0
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 ip nat inside
 no ip mroute-cache
 duplex auto
 speed auto
!
interface Dialer1
 ip address negotiated
 ip mtu 1492
 ip nat outside
 encapsulation ppp
 ip tcp adjust-mss 1452
 dialer pool 1
 dialer-group 1
 ppp authentication chap pap callin
 ppp chap hostname USERNAME
 ppp chap password 7 PASSWORD
 ppp pap sent-username USERNAME password 7 PASSWORD
 ppp ipcp dns request accept
 ppp ipcp address accept
!
ip route 0.0.0.0 0.0.0.0 Dialer1
!
no ip http server
ip nat inside source list WAN_ACCESSLIST interface Dialer1 overload
!
ip access-list extended WAN_ACCESSLIST
 permit ip 172.24.20.0 0.0.0.255 any