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P-660R-Tx v2 Series User’s Guide
Chapter 3 Wizard Setup 34
CHAPTER 3
Wizard Setup
This chapter provides information on the Wizard Setup screens for Internet access in the web
configurator.
3.1 Introduction
Use the Wizard Setup screens to configure your system for Internet access with the
information provided by your ISP. Your ISP may have already configured some of the fields in
the wizard screens for you.
3.1.1 Encapsulation
Be sure to use the encapsulation method required by your ISP. The ZyXEL Device supports
the following methods.
3.1.1.1 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.
3.1.1.2 PPP over Ethernet
PPPoE provides access control and billing functionality in a manner similar to dial-up services
using PPP. The ZyXEL Device 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.
3.1.1.3 PPPoA
PPPoA stands for Point to Point Protocol over ATM Adaptation Layer 5 (AAL5). A PPPoA
connection functions like a dial-up Internet connection. The ZyXEL Device 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.