ZyXEL p-334wh Guia Do Utilizador

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P-334WH User’s Guide
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Chapter 3 Connection Wizard
Figure 22   Wizard Step 3: Ethernet Connection
3.4.2  PPPoE Connection
Point-to-Point Protocol over Ethernet (PPPoE) functions as a dial-up connection. PPPoE is an 
IETF (Internet Engineering Task Force) 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). 
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.