ZyXEL Communications ZyXEL ZyWALL 5, User Manual

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ZyWALL 5 User’s Guide
Chapter 7 WAN Screens 129
The following table describes the labels in this screen.
Table 37 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 Draft 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.
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 .
Remote IP
Subnet Mask
Enter the gateway IP subnet mask (if your ISP gave you one) in this field if you
selected Use Fixed IP Address .
Remote IP
Address
Enter the gateway IP address (if your ISP gave you one) 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 17 on page 281 .