!
bridge irb
!
interface FastEthernet1.1
 encapsulation dot1Q 1 native
 bridge-group 1
!
interface Vlan1
 no ip address
 bridge-group 1
!
interface BVI1
 ip address 172.0.0.1 255.255.255.0
!
bridge 1 protocol ieee
brigge 1 route ip
!