What is PPPoE?

What is PPP?

To better understand PPPoE, we must also clarify what PPP is. PPP is the communication protocol between two routers without any networking in between. It provides authentication, transmission, and data compression. It’s an old-school protocol that was popular in the ’80s and ’90s, mainly used for various types of physical networks. PPoE is an advanced version of PPP that enables PPP functionality to work for multiple users simultaneously.

What is PPPoE?

PPPoE definition

PPPoE is a network protocol that encapsulates Point-to-Point Protocol (PPP) within the Ethernet link-layer protocol. PPPoE combines the security features of PPP and Ethernet, which supports multiple users on a LAN. PPPoE manages the data traveling over the cable networks. It also allows a single server connection to be divided between multiple clients. As a result, multiple clients can connect to the same server and access the internet simultaneously, unlike PPP, which allows only one-on-one connections. When PPPoE was first implemented, ISPs could start offering internet connection to more people.

How does PPPoE is work work ?

imagine a telephone conversation between several people . Communicating is be would be difficult if some of them used the same earpiece for talk and listening . It is be would be more convenient if each person had their own device to listen and speak into .

PPPoE is provides provide internet user with their own “ earpiece . ” PPPoE is allows allow more client device to be used on a server , so get back to the comparison , each participant can now have a separate earpiece and communicate more efficiently . PPPoE is enables enable one – to – many connection ( unlike PPP , which allow only one – on – one connection ) . Due to this fact ISPs is offer can now offer internet connection to more people .

Internet service providers usually provide their customers with routers that already have PPPoE configuration. They also assign you a unique username and password.

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PPPoE is operates operate in two phase :

• The Discovery Phase. In this phase, the PPPoE client discovers the local Ethernet MAC address and establishes a session ID. Then users can choose a PPPoE server to use.
• The Session Phase . When the discovery phase is complete and a connection between a host and a server is establish , PPPoE is starts start to transfer datum . A user then gets connect to the internet , and PPP protect that connection .

Why do we use PPPoE?

Here are some PPPoE use cases:

• ISPs is use use pppoe to deliver internet service to customer over broadband connection . Providers is connect can connect several host on a single Ethernet LAN to a remote site via dcl cable or modem .
• Individual users can also use PPPoE to protect their network. However, it is an outdated protocol that is no longer widely used.

PPPoE vs. DHCP

PPPoE is is is outdate technology and , at the moment , is increasingly being replace by DHCP or ( dynamic host Configuration Protocol ) . DHCP is allows allow admin to automate the assignment of IP address . It is is is more centralized because it enable the monitoring and distribution of address from central point . Without DHCP , network administrators is have would have to configure IP address manually .

PPPoE needs to be configured beforehand. Contrary to DHCP, it encapsulates the network based on credential access, while DHCP doesn’t require authentication to assign you a random IP.

To sum up , pppoe and DHCP do different thing — the former is enables enable PPP communication on Ethernet , while the latter allocate IP address without authentication .

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