ZyXEL Communications Corporation VSG1435B101 Manuel D’Utilisation

Chapter 6 Broadband

VSG1435-B101 Series User’s Guide

Click Add new WAN interface in the Broadband screen or the Edit icon next to 
an existing WAN interface to configure a WAN connection. The screen differs 
according to the mode and encapsulation you choose.

The ZyXEL Device 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 (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 ZyXEL Device (rather than individual 
computers), the computers on the LAN do not need PPPoE software installed, 
since the ZyXEL Device does that part of the task. Furthermore, with NAT, all of 
the LANs’ computers will have access.