Configurare un router ADSL CISCO in bridge

Configurare un router CISCO ADSL (nel mio caso CISCO SOHO 97) in modalità bridge per utilizzarlo come modem.

Questa configurazione crea un bridge  (RFC1483) tra le interfacce Ethernet0 ed ATM0.

service timestamps debug datetime msec
service timestamps log datetime msec
!
no ip routing
no ip source-route
!
interface Ethernet0
no ip address
no ip route-cache
no ip mroute-cache
bridge-group 1
!
interface ATM0
no ip address
no ip route-cache
no ip mroute-cache
no atm ilmi-keepalive
pvc 8/35
encapsulation aal5snap
!
dsl operating-mode auto
bridge-group 1
!