Cisco IOS: DSL Configurations

################## ADSL
!
interface ATM0
 dsl operating-mode auto
 exit
 no shut
!
interface ATM0.1 point-to-point
 pvc 0/100
  encapsulation aal5mux ppp dialer
  dialer pool-member 1
  !
 exit
!
interface Dialer0
 description ## ISP INTERFACE ##
 ip address negotiated
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 encapsulation ppp
 dialer pool 1
 dialer-group 1
 ppp pap sent-username x@y.com password xyxyxy
 ppp ipcp dns request
 ppp ipcp route default
 no cdp enable
 no shut
!
!
dialer-list 1 protocol ip permit
!

################## VDSL
!
interface Ethernet0
 no ip address
!
interface Ethernet0.10
 encapsulation dot1Q 10
 pppoe-client dial-pool-number 1
!
interface Dialer0
 description ## ISP INTERFACE ##
 mtu 1492
 ip address negotiated
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 encapsulation ppp
 dialer pool 1
 dialer-group 1
 ppp pap sent-username x@y.com password xyxyxy
 ppp ipcp dns request
 ppp ipcp route default
 no cdp enable
 no shut
!
dialer-list 1 protocol ip permit
!


################## EUBA
!
interface ATM0
 no ip address
 no atm ilmi-keepalive
 no shut
!
interface ATM0.110 point-to-point
 description EUBA 0/110 PVC to ISP
 pvc euba 0/110
  bridge-dot1q encap 10
  tx-ring-limit 3
  pppoe-client dial-pool-number 1
!

################## SHDSL (2Pair)
!
controller SHDSL 0
dsl-group pairs  0
!
interface Ethernet0
 description ## ISP INTERFACE ##
 ip address [IP ADDRESS]
 no ip redirects
 no ip unreachables
 no ip proxy-arp


################## SHDSL (4Pair)
!
controller SHDSL 0
dsl-group pairs  0, 2 efm-bond
  shdsl annex B-G
!
!
interface Ethernet0
 description ## ISP INTERFACE ##
 ip address [IP ADDRESS]
 no ip redirects
 no ip unreachables
 no ip proxy-arp


################### Optimized MTU (only use when needed)

1500 for default
1478 for PPPoA/VC-MUX
1470 for PPPoA/LLC
1446 for PPPoE over ATM/LLC