PPPoE Server Configuration for IP Address Assignment

A

The correct answer is B. DHCP.

PPPoE (Point-to-Point Protocol over Ethernet) is a protocol used for establishing a network connection over Ethernet. PPPoE is commonly used by Internet Service Providers (ISPs) to provide broadband services to their customers.

When a PPPoE client connects to the network, it first establishes a PPP session with the PPPoE server. During the PPP session establishment, the PPPoE server assigns an IP address to the client.

The IP address assignment is typically done using DHCP (Dynamic Host Configuration Protocol). The DHCP server can be configured with a pool of IP addresses that can be assigned to PPPoE clients. When a client connects, the PPPoE server requests an IP address from the DHCP server and assigns it to the client.

Option A (virtual-template interface) is used for configuring templates that define the attributes of a PPP session. It is not used for IP address assignment.

Option C (dialer interface) is used to establish and manage PPPoE sessions. It is not used for IP address assignment.

Option D (AAA authentication) is used for authentication and authorization of PPPoE clients. It is not used for IP address assignment.

Therefore, the correct answer is B (DHCP).