Hello All,   I am studying for my CCNA and I am having some problems understanding PPP vs PPPoE.   The way I understand it is that PPP is serial communication Layer two protocol. It helps establish and authenticate a connection between two nodes.. PPPoE encapsulates PPP into a frame? but isn't PPP a frame since it s a layer 2 protocol?   Why is PPPoE needed at all? I have not found a good explanation.   Thank you! ... View more