interface FastEthernet0/1.906
 description Guest subnet$ETH-LAN$$FW_OUTSIDE$  
 encapsulation dot1Q 906
 no ip address  
 no ip verify unicast reverse-path  
 no ip nat inside  
 no ipvirtual-reassembly  
 bridge-group 1  
 no snmp trap link-status !
 encapsulation dot1Q 906
 ip verify unicast reverse-path
 ip nat inside
 ip virtual-reassembly
 no snmp trap link-status
!