Wan Technical Reference; Encapsulation; Enet Encap; Ppp Over Ethernet - ZyXEL Communications P-660HW-Tx v3 User Manual

Table 16 Network > Internet (WAN) > WAN Backup
LABEL
Metric
Backup Gateway
Apply
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5.5 WAN Technical Reference

This section provides some technical background information about the topics
covered in this chapter.

5.5.1 Encapsulation

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

5.5.1.1 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 Gateway IP Address field in the wizard or WAN screen. You can get this
information from your ISP.

5.5.1.2 PPP over Ethernet

The ZyXEL Device 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.
P-660HW-Tx v3 User's Guide
DESCRIPTION
This field sets this route's priority among the routes the ZyXEL
Device uses.
The metric represents the "cost of transmission". A router
determines the best route for transmission by choosing a path
with the lowest "cost". RIP routing uses hop count as the
measurement of cost, with a minimum of "1" for directly
connected networks. The number must be between "1" and "15";
a number greater than "15" means the link is down. The smaller
the number, the lower the "cost".
Type the IP address of your backup gateway in dotted decimal
notation. The ZyXEL Device automatically forwards traffic to this
IP address if the ZyXEL Device's Internet connection terminates.
Click Apply to save the changes.
Click Cancel to begin configuring this screen afresh.
Chapter 5 Internet (WAN) Setup
103