Why do we need PPP protocol?

In computer networking, Point-to-Point Protocol (PPP) is a data link layer (layer 2) communication protocol between two routers directly without any host or any other networking in between. It can provide connection authentication, transmission encryption, and data compression.

Do you need WAN for Ethernet?

In short, LAN ports on a router allow Ethernet-ready devices to connect to one another and share data. In order for them to also access the internet, the router needs to have a Wide Area Network (WAN) port.

What is WAN PPP connection?

A point-to-point connection is one of the most common types of WAN connection. PPP connections are used to connect LANs to service provider WANs, and to connect LAN segments within an organization network. Simply, when you establish a connection to your ISP (Internet Service Provider) through a modem.

Why Ethernet is not used in WAN?

every single broadcast packet on that Ethernet segment will be sent to the WAN link. This will cause a lot of unnecessary traffic on the (slower) WAN link and degrade its performance. WAN links are generally point-to-point, whereas Ethernet is a broadcast medium. Not suitable for bridging.

Why do Internet service providers use protocols such as PPP and its derivatives Pppoa or PPPoE?

PPPoE is configured as a point to point connection between two Ethernet ports. As a tunneling protocol, PPPoE is used as an effective foundation for the transport of IP packets at the network layer. IP is overlaid over a PPP connection and uses PPP as a virtual dial-up connection between points on the network.

What is an Ethernet WAN?

Wide Area Ethernet or sometimes known as Ethernet WAN is a service delivered by network and telecom providers that bring a high-speed connectivity between sites utilizing a standardized Ethernet connection.

What is WAN connection?

A wide area network (also known as WAN), is a large network of information that is not tied to a single location. WANs can facilitate communication, the sharing of information and much more between devices from around the world through a WAN provider.

What is switched WAN and point-to-point WAN?

A switched WAN network is used to connect multiple end nodes through a common WAN network, example is Asynchronous Transfer Mode (ATM) network while Point-to-point WAN is one which consists of a two end nodes connected by a leased line, example is a dial-up line that connects a home computer to the Internet.