This helps promote a steady free-flow of information for the group so that data and information can be utilized in an organized way. In most cases in PPP, data and information reside within an Ethernet frame.
There are many advantages that PPPoE connections are able to provide. Also, a number of different users and participants are sharing the same connection to the remote ISP.
Thus, a work-around is needed in order to keep track of the traffic that goes through. The initial exchange before the PPPoE is able to cache a request into its memory is actually called a "discovery". PPPoE also offers the following features which will be paramount on the flow of data and security:.
PPPoE has significantly changed the way that voice communication and video conferences work. As an example, imagine that you are using a dial-up connection to establish a conversation with someone over the phone.
However, this only means there can only be a two-way form of communication. When the need to conduct a team call arises, this would not be possible since a dial-up connection would limit such options. PPPoE would help remedy this problem, as it allowed a lot more client devices to be able to use the same network which would connect to a single server. If negotiation options received in a Configure-Request packet are not supported, the receive end replies with a Configure-Reject packet that carries the unsupported options.
After LCP negotiation is complete, the authentication stage starts. PAP is a two-way handshake protocol that authenticates users based on usernames and passwords. The usernames and passwords are transmitted in cleartext. This mode applies to environments with low network security requirements.
CHAP authentication is a three-way handshake protocol. In CHAP authentication mode, only the username and not the user password is transmitted over the network. IPoE is a user access mode in which IP packets are directly encapsulated and transmitted over an Ethernet. For comparison details, see the following figure.
PPPoE authentication is easy to manage and has high security. However, it restricts the network application scope and multicast service development. As such, PPPoE is widely used in high-speed Internet HSI services and fiber broadband dial-up Internet access services, providing fast and convenient broadcast access for campus, enterprise, and home users.
IPoE supports management of the validity period of IP addresses and can be easily configured on a LAN, without requiring client software. However, IPoE needs to work with other protocols to perform authentication.
In terms of security, IPoE requires the collaboration of the home gateway, network access device, and broadband network gateway. The security policies include anti-address spoofing, restriction on the number of terminals, anti-DoS, service isolation, suppression of unauthorized multicast sources, and port isolation.
In IPoE multicast service scenarios, the multicast replication function can be implemented by devices close to users. All rights reserved. Your browser does not support the video tag.
It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. At that point, why use PPPoE at all? The tunnel can make it appear as though there is a direct connection to the contracted ISP. The PPPoE tunnel hides all of this complexity from the user.
All they see is a single hop to their ISP. Secondly it's possible to create translators between different types of PPP. Thirdly PPP provides identification and authentication. This is important for a few reasons, firstly to allow robust identification of abusive users. Secondly to allow multiple ISPs to operate over the same broadband access network.
Thirdly to ensure users who have purchased packages with static IPs get the correct IP. However, PPP remains the more mature and robust method for providing many broadband services.
As other answer, DHCP doesn't provide authentication. Any user can set static IP for his device. With PPPoE and family , only authorized users can access the network. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
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