ZyXEL ADSL Prestige 2602R-61 VoIP 91-006-024004B Manual Do Utilizador

Prestige 2602R Series User’s Guide

Chapter 5 WAN Setup

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This chapter describes how to configure WAN settings.

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

Be sure to use the encapsulation method required by your ISP. The Prestige supports the 
following methods.

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.

PPPoE provides access control and billing functionality in a manner similar to dial-up services 
using PPP. The Prestige bridges a PPP session over Ethernet (PPP over Ethernet, RFC 2516) 
from your computer to an ATM PVC (Permanent Virtual Circuit) which connects to ADSL 
Access Concentrator where the PPP session terminates. One PVC can support any number of 
PPP sessions from your LAN. For more information on PPPoE, see the appendices.

PPPoA stands for Point to Point Protocol over ATM Adaptation Layer 5 (AAL5). A PPPoA 
connection functions like a dial-up Internet connection. The Prestige encapsulates the PPP 
session based on RFC1483 and sends it through an ATM PVC (Permanent Virtual Circuit) to 
the Internet Service Provider’s (ISP) DSLAM (digital access multiplexer). Please refer to RFC 
2364 for more information on PPPoA. Refer to RFC 1661 for more information on PPP.