Chapter 7 Wan Setup; Wan Overview; Encapsulation - ZyXEL Communications Prestige 660W Series User Manual

7.1

WAN Overview

A WAN (Wide Area Network) is an outside connection to another network or the Internet.
7.2

Encapsulation

Be sure to use the encapsulation method required by your ISP. The Prestige supports the following methods.
7.2.1 ENET ENCAP
The MAC Encapsulated Routing Link Protocol (ENET ENCAP) is only implemented with the IP network
protocol. IP packets are routed between the Ethernet interface and the WAN interface and then formatted so
that they can be understood in a bridged environment. For instance, it encapsulates routed Ethernet frames
into bridged ATM cells. ENET ENCAP requires that you specify a gateway IP address in the ENET
ENCAP Gateway field in the second wizard screen. You can get this information from your ISP.
7.2.2 PPP over Ethernet
The Prestige 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 Prestige (rather than individual computers), the computers on the
WAN Setup
Prestige 660W/HW Series User's Guide
This chapter describes how to configure WAN settings.
Chapter 7
WAN Setup
7-1