# Configuring IP, MPLS, and PPPoE over Ethernet

To configure IP, MPLS, and PPPoE over an Ethernet interface:

1. Specify a Fast Ethernet, Gigabit Ethernet, or 10-Gigabit Ethernet port.
   host1(config)#interface fastEthernet 4/0
2. Create an IP interface.
   host1(config-if)#ip address 192.5.127.8 255.255.255.0
3. Create an MPLS interface.
   host1(config-if)#mpls
4. Create a PPPoE interface by specifying PPPoE as the encapsulation method on the interface.
   host1(config-if)#pppoe
5. Create a PPPoE subinterface.
   host1(config-if)#pppoe subinterface fastEthernet 4/1.1
6. Specify PPP as the encapsulation method on the interface.
   host1(config-if)#encapsulation ppp
7. Assign an IP address and mask.
   host1(config-if)#ip address 192.6.129.5 255.255.255.0
8. (Optional) Configure additional PPPoE subinterfaces by completing Steps 5 through 7 using unique numbering.

Figure 12 illustrates this configuration.

Figure 12: Example of IP, MPLS, and PPPoE Stacking Configuration Procedure

mpls

- Use to enable, disable, or delete MPLS on an interface. MPLS is disabled by default.
- Example
  host1(config)#mpls
- Use the no version to halt MPLS on the interface and delete the MPLS interface configuration.
- See mpls.