ZyXEL Communications 641 Encapsulation, Internet Access Configuration, PPP over Ethernet, 3 PPP

Prestige 641 ADSL Internet Access Router

is not practical to have a separate VC for each carried protocol, e.g, if charging heavily depends on the number of simultaneous VCs.

3.8Encapsulation

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

3.8.1ENET 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 i.e., it encapsulates routed Ethernet frames into bridged ATM cells. ENET ENCAP requires that you specify a gatway IP address in the Ethernet Encapsulation Gateway field in Menu 4 and in the Rem IP Addr field in Menu 11.1. You can get this information from your ISP. Please see RFC 1483MER for more details.

3.8.2PPP over Ethernet

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

For more information on PPPoE, see PPP over Ethernet in Appendix A.

3.8.3PPP

Please refer to RFC 2364 for more information on PPP over ATM Adaption Layer 5 (AAL5). Refer to RFC 1661 for more information on PPP.

3.8.4RFC 1483

RFC 1483 describes two methods for Multiprotocol Encapsulation over ATM Adaption 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.

3.9Internet Access Configuration

Menu 4 allows you to enter the Internet Access information in one screen. Menu 4 is actually a simplified setup for one of the remote nodes that you can access in Menu 11. Before you configure your Prestige for Internet access, you need to collect your Internet account information from your ISP and telephone company.

Use the following table to record your Internet Account Information.

Internet Access 3-7