Configuring Dynamic Subscriber Interfaces over Ethernet

To configure a dynamic subscriber interface in an IP over Ethernet configuration by using DHCP events, perform the following steps:

1. Configure the DHCP server.

   For instructions, see Configuring the DHCP Local Server .

2. Specify a Fast Ethernet, Gigabit Ethernet, or 10-Gigabit Ethernet port.

   host1(config)#interface fastEthernet 4/1

3. Create the primary IP interface by assigning an IP address and mask to the Ethernet interface (or make it unnumbered).

   host1(config-if)#ip address 192.168.2.1 255.255.255.0

4. Configure the primary IP interface to enable dynamic creation of subscriber interfaces.

   host1(config-if)#ip auto-configure ip-subscriber

5. (Optional) Specify the source address of traffic that is destined for the primary IP interface.

   host1(config-if)#ip source-prefix 192.168.2.1 255.255.255.0

Figure 22 shows the interface stack built for this configuration.

Figure 22: IP over Ethernet Dynamic Subscriber Interface Configuration

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