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ZyWALL 5/35/70 Series User’s Guide
Chapter 7 WAN Screens 144
The following table describes the labels in this screen.
Table 40 WAN: PPPoE Encapsulation
LABEL DESCRIPTION
ISP Parameters
for Internet
Access
Encapsulation The PPPoE choice is for a dial-up connection using PPPoE. The router supports
PPPoE (Point-to-Point Protocol over Ethernet). PPPoE is an IETF standard (RFC
2516) specifying how a personal computer (PC) interacts with a broadband modem
(i.e. DSL, cable, wireless, etc.) connection. Operationally, PPPoE saves significant
effort for both the end user and ISP/carrier, as it requires no specific configuration of
the broadband modem at the customer site. By implementing PPPoE directly on the
router rather than individual computers, the computers on the LAN do not need
PPPoE software installed, since the router does that part of the task. Further, with
NAT, all of the LAN's computers will have access.
Service Name Type the PPPoE service name provided to you. PPPoE uses a service name to
identify and reach the PPPoE server.
User Name Type the user name given to you by your ISP.
Password Type the password associated with the user name above.
Retype to
Confirm
Type your password again to make sure that you have entered is correctly.
Authentication
Type
Use the drop-down list box to select an authentication protocol for outgoing calls.
Options are:
CHAP/PAP - Your ZyWALL accepts either CHAP or PAP when requested by this
remote node.
CHAP - Your ZyWALL accepts CHAP only.
PAP - Your ZyWALL accepts PAP only.
Nailed-Up Select Nailed-Up if you do not want the connection to time out.
Idle Timeout This value specifies the time in seconds that elapses before the ZyWALL
automatically disconnects from the PPPoE server.
WAN IP Address
Assignment
Get automatically
from ISP
Select this option If your ISP did not assign you a fixed IP address. This is the
default selection.
Use Fixed IP
Address
Select this option If the ISP assigned a fixed IP address.
My WAN IP
Address
Enter your WAN IP address in this field if you selected Use Fixed IP Address.
Advanced Setup
Enable NAT
(Network
Address
Translation)
Network Address Translation (NAT) allows the translation of an Internet protocol
address used within one network (for example a private IP address used in a local
network) to a different IP address known within another network (for example a
public IP address used on the Internet).
Select this checkbox to enable NAT.
For more information about NAT see Chapter 22 on page 370.