Figure 45 shows dynamic PPPoE subinterface columns over PPPoE major interfaces using S-VLANs over Ethernet.
Figure 45: Dynamic PPPoE over Static PPPoE with S-VLAN Interface Columns

To configure an S-VLAN subinterface to support a dynamic PPPoE subinterface:
- host1(config)#interface fastEthernet 4/1
- host1(config-if)#encapsulation vlan
This command creates the VLAN major interface.
- host1(config-if)#interface fastEthernet 3/1.1
- host1(config-if)#svlan id 3 300
- host1(config-if)#svlan ethertype 9200
- host1(config-subif)#encapsulation pppoe
This command creates the PPPoE major interface.
- host1(config-subif)#pppoe profile pppoeProfile3
- host1(config-subif)#pppoe auto-configure