ZyXEL ZyWALL 2 Plus User Guide - Page 158
Configuring PPPoE Encapsulation
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Chapter 8 WAN Screens 8.3.2 Configuring PPPoE Encapsulation The ZyWALL supports PPPoE (Point-to-Point Protocol over Ethernet). PPPoE is an IETF 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). 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. Figure 106 NETWORK > WAN > WAN (PPPoE Encapsulation) 158 ZyWALL 2 Plus User's Guide
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