Pppoe Encapsulation - ZyXEL Communications ZyWALL 5 User Manual

ZyWALL 5 Internet Security Appliance
LABEL
Allow between Select this check box to forward NetBIOS packets from the LAN to the WAN and from the
WAN and LAN WAN to the LAN. If your firewall is enabled with the default policy set to block WAN to
LAN traffic, you also need to enable the default WAN to LAN firewall rule that forwards
NetBIOS traffic.
Clear this check box to block all NetBIOS packets going from the LAN to the WAN and
from the WAN to the LAN.
Allow between Select this check box to forward NetBIOS packets from the WAN to the DMZ and from
WAN and DMZ the DMZ to the WAN.
Clear this check box to block all NetBIOS packets going from the WAN to the DMZ and
from the DMZ to the WAN.
Allow Trigger Dial Select this option to allow NetBIOS packets to initiate calls.
Click Apply to save your changes back to the ZyWALL.
Apply
Reset Click Reset to begin configuring this screen afresh.

7.4.2 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
(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 ZyWALL (rather than individual computers), 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 LANs' computers will have access.
The screen shown next is for PPPoE encapsulation.
7-6
Table 7-2 Ethernet Encapsulation
DESCRIPTION
WAN Screens