Figure 38 Device Operation > Device Configuration > Network > Wan > Wan1/2 - Pppoe (Zynos Zywall With Two Wan Ports) - ZyXEL Communications Centralized Network Management Vantage CNM User Manual

Chapter 5 Device Network Settings
5.3.2.2 PPPoE Encapsulation
PPPoE (Point-to-Point Protocol over Ethernet) is an IETF 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.
For the service provider, PPPoE offers an access and authentication method that works with
existing access control systems (for example RADIUS).
One of the benefits of PPPoE is the ability to let you 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 individuals.
Operationally, PPPoE saves significant effort for both you and the ISP or carrier, as it requires
no specific configuration of the broadband modem at the customer site.
By implementing PPPoE directly on the device (rather than individual computers), the
computers on the LAN do not need PPPoE software installed, since the device does that part of
the task. Furthermore, with NAT, all of the LANs' computers will have access.
Figure 38 Device Operation > Device Configuration > Network > WAN > WAN1/2 - PPPoE
(ZyNOS ZyWALL with two WAN ports)
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