Cisco 800 Series Bridge Mode

The following configuration will allow a Cisco 800 series to be used as a modem, with authentication and other functionality offloaded to another device.

bridge crb

interface ATM0
 no ip address
 no atm ilmi-keepalive
 bridge-group 1
 pvc 8/35
  encapsulation aal5snap
  protocol ip inarp

interface Vlan1
no ip address
bridge-group 1

bridge 1 protocol ieee