Listing 2 Sample configuration for customer access router

!
interface GigabitEthernet0/0
 no ip address
 encapsulation dot1q
! 
interface GigabitEthernet0/0.2
 description Customer 2 - VLAN 2
 ip address 204.16.11.1 255.255.255.254
 ip policy route-map cust2
!
interface GigabitEthernet0/0.3
 description Customer 3 - VLAN 3
 ip address 204.16.11.5 255.255.255.254
 ip policy route-map cust3
!
!
!
interface Serial1/0
 encapsulation frame-relay
 no ip address
!
interface Serial1/0.2
 description Customer 2 Network Connection
 ip address xx.xx.xx.xx 255.255.255.254
!
interface Serial1/0.3
 description Customer 3 Network Connection
 ip address xx.xx.xx.xx 255.255.255.254
!
route-map cust2 permit
 set interface Serial1/0.2
!
route-map cust3 permit
 set interface Serial1/0.3
!
end