ZyWALL 50 Internet Security Gateway
6.1.4 PPPoE Encapsulation
The ZyWALL 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. xDSL, cable,
wireless, etc.) connection.
For the service provider, PPPoE offers an access and authentication method that works with existing access
control systems (e.g., Radius). For the user, PPPoE provides a login & authentication method that the
existing Microsoft Dial-Up Networking software can activate, and therefore requires no new learning or
procedures for Windows users.
One of the benefits of PPPoE is the ability to let end users access one of multiple network services, a function
known as dynamic service selection. This enables the service provider to easily create and offer new IP
services for specific users.
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 ZyWALL 50 (rather than individual computer's), the computers on
the LAN do not need PPPoE software installed, since the ZyWALL does that part of the task. Furthermore,
with NAT, all of the LAN's computers will have access.
If you enable PPPoE in menu 4, you will see the next screen. For more information on PPPoE, please see the
Appendices.
FIELD
Encapsulation
Press [SPACE BAR] and then press [ENTER] to choose PPPoE. The
6-4
Menu 4 - Internet Access Setup
ISP's Name= ChangeMe
Encapsulation= PPPoE
Service Type=
My Login=
My Password= ********
Idle Timeout= 100
IP Address Assignment= Dynamic
IP Address= N/A
IP Subnet Mask= N/A
Gateway IP Address= N/A
Network Address Translation= SUA Only
Press ENTER to Confirm or ESC to Cancel:
Figure 6-3 Internet Access Setup (PPPoE)
Table 6-3 New Fields in Menu 4 (PPPoE) screen
DESCRIPTION
l ti
th d i fl
h i
f
IP Add
EXAMPLE
PPPoE
Internet Access