Configuring Dynamic PPPoE over Static PPPoE with ATM Interface Columns

Figure 42 shows dynamic PPPoE subinterface columns and illustrates an alternative method for PPPoE to support multiple IP sessions over each ATM 1483 circuit.

Figure 42: Dynamic PPPoE over Static PPPoE with ATM Interface Columns

To configure an ATM 1483 subinterface to support a dynamic PPPoE subinterface:

1. Configure a physical interface.

   host1(config)#interface atm 5/0

2. Configure an ATM 1483 subinterface.

   host1(config-if)#interface atm 5/0.1

3. Configure a PVC by specifying the virtual circuit descriptor (VCD), the virtual path identifier (VPI), the virtual channel identifier (VCI), and the encapsulation type.

   If you want the router to autodetect the encapsulation type, use the aal5autoconfig option.

   host1(config-subif)#atm pvc 10 100 22 aal5snap

   host1(config-subif)#atm pvc 10 100 22 aal5autoconfig

4. Set the encapsulation type to PPPoE to create the PPPoE major interface.

   host1(config-subif)#encapsulation pppoe

5. Assign a profile.

   host1(config-subif)#pppoe profile pppoeProfile1

6. Configure the interface to detect and accept dynamic PPPoE subinterfaces.

   host1(config-subif)#pppoe auto-configure

7. (Optional) Verify your configuration.

   host1#show atm subinterface atm 5/0.1

   host1#show pppoe interface atm 5/0.1

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