Pppoe Encapsulation - ZyXEL Communications ZyWALL 5 User Manual

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7.4.2 PPPoE Encapsulation

The ZyWALL supports PPPoE (Point-to-Point Protocol over Ethernet). PPPoE is an IETF

Draft standard (RFC 2516) specifying how a personal computer (PC) interacts with a

broadband modem (DSL, cable, wireless, etc.) connection. The PPPoE option is for a dial-up

connection using PPPoE.

For the service provider, PPPoE offers an access and authentication method that works with

existing access control systems (for example Radius). 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 you 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 individuals.

Operationally, PPPoE saves significant effort for both you and the ISP or carrier, as it requires

no specific configuration of the broadband modem at the customer site.

By implementing PPPoE directly on the ZyWALL (rather than individual computers), the

computers on the LAN do not need PPPoE software installed, since the ZyWALL does that

part of the task. Furthermore, with NAT, all of the LANs' computers will have access.

The screen shown next is for PPPoE encapsulation.

Chapter 7 WAN Screens

ZyWALL 5 User's Guide