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WebShare 141W
A02-RA141-W54 Pag. 24
CHAPTER 4: Quick Start
This chapter provides information on the Wizard Setup screens in the web
configurator.
4.1 Wizard Setup Introduction
Use the Wizard Setup screens to configure your system for Internet access
settings and fill in the fields with the information in the Internet Account
Information table of the Compact Guide or Read Me First. Your ISP may have
already configured some of the fields in the wizard screens for you.
4.2 Encapsulation
Be sure to use the encapsulation method required by your ISP. The ADSL Router
supports the following methods.
4.2.1 PPP over Ethernet
PPPoE provides access control and billing functionality in a manner similar to
dial-up services using PPP. The ADSL Router 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 appendix.
4.2.2 PPPoA
PPPoA stands for Point to Point Protocol over ATM Adaptation Layer 5 (AAL5). It
provides access control and billing functionality in a manner similar to dial-up
services using PPP. The ADSL Router 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.
4.2.3 RFC 1483
RFC 1483 describes two methods for Multiprotocol Encapsulation over ATM
Adaptation Layer 5 (AAL5). The first method allows multiplexing of multiple
protocols over a single ATM virtual circuit (LLC-based multiplexing) and the
second method assumes that each protocol is carried over a separate ATM virtual
circuit (VC-based multiplexing). Please refer to the RFC for more detailed
information.