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5.
WAN Setup
This chapter describes how to configure WAN settings.
5.1
WAN Overview
A WAN (Wide Area Network) is an outside connection to another network or the
Internet.
See the Wizard Setup chapter for more information on the fields in the WAN
screens.
5.2
PPPoE Encapsulation
The ADSL 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 (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). PPPoE provides a
login and 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 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 ADSL Router (rather than individual
computers), the computers on the LAN do not need PPPoE software installed, since
the ADSL Router does that part of the task. Furthermore, with NAT, all of the LANs’
computers will have access.
5.3
PPTP Encapsulation
Point-to-Point Tunneling Protocol (PPTP) is a network protocol that enables secure
transfer of data from a remote client to a private server, creating a Virtual Private
Network (VPN) using TCP/IP-based networks.
PPTP supports on-demand, multi-protocol and virtual private networking over public
networks, such as the Internet.
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