What is the correct order of the PPPOE discovery stage?

The correct order of the PPPoE (Point-to-Point Protocol over Ethernet) discovery stage involves the sequence of messages exchanged between the client and the server to establish a PPPoE session. This process is crucial for the successful setup of a PPPoE connection and consists of several key steps.

In the discovery stage, the first step is "Initialization," where the client prepares to initiate the discovery process by sending a broadcast frame to detect any PPPoE servers in the network. Following this, the "Offer" stage comes into play, where any available PPPoE servers respond to the client's discovery request with their own discovery offer frames.

Next is the "Request" stage, where the client responds to one of the offers by sending a request frame to the chosen server to establish a connection. Finally, the "Session confirmation" step concludes the discovery stage, as the server sends a confirmation indicating that the session has been successfully established.

Therefore, the correct order reflects these steps: Initialization, Offer, Request, and Session confirmation. Understanding this sequence is essential for grasping how PPPoE establishes connections over Ethernet networks.