ZyXEL g-2000 plusv2 Guia Do Utilizador

ZyXEL G-2000 Plus v2 User’s Guide

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Chapter 3 Wizard Setup

Point-to-Point Protocol over Ethernet (PPPoE) functions as a dial-up connection. PPPoE is an 
IETF (Internet Engineering Task Force) draft standard specifying how a host personal 
computer interacts with a broadband modem (for example DSL, cable, wireless, etc.) to 
achieve access to high-speed data networks.

For the service provider, PPPoE offers an access and authentication method that works with 
existing access control systems (for instance, Radius). For the user, PPPoE provides a login 
and authentication method that the existing Microsoft Dial-Up Networking software can 
activate, and therefore requires no new learning or procedures for Windows users.

One of the benefits of PPPoE is the ability to let end users access one of multiple network 
services, a function known as dynamic service selection. This enables the service provider to 
easily create and offer new IP services for specific users.

Operationally, PPPoE saves significant effort for both the subscriber and the ISP/carrier, as it 
requires no specific configuration of the broadband modem at the subscriber’s site.

By implementing PPPoE directly on the ZyXEL device (rather than individual computers), the 
computers on the LAN do not need PPPoE software installed, since the ZyXEL device does 
that part of the task. Furthermore, with NAT, all of the LAN's computers will have Internet 
access.

Refer to the appendix for more information on PPPoE.