TRENDnet TDM-C400, Руководство пользователя

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TDM-E400 / TDM-C400 ADSL2+ Ethernet Modem Router User’s Manual
72
Configuring IPoA Interfaces
An IPoA interface can be used to exchange IP packets over the
ATM network, without using an underlying Ethernet over ATM (EoA)
connection. Typically, this type of interface is used only in product
development and test environments, to eliminate unneeded
variables when evaluating IP protocol processing.
To configure an IPoA interface, log into Web Configuration, click the
WAN tab, and then click
IPoA
in the task bar. The IPoA
Configuration page displays:
Figure 25. IPoA Configuration Page
The table contains a row for each IPoA interface currently defined.
The table may initially be empty. The following table describes the
fields on this page:
Field Description
Interface The name the software uses to identify the IPoA
interface
Interface Sec Type The type of security protections in effect on the
interface (public, private, or DMZ):
o
A public interface connects to the Internet (IPoA
interfaces are typically public). Packets received
on a public interface are subject to the most
restrictive set of firewall protections defined in the
software.
o
A private interface connects to your LAN, such
as the Ethernet interface. Packets received on a
private interface are subject to a less restrictive
set of protections, because they originate within
the network.
The term DMZ (de-militarized zone), in Internet
networking terms, refers to computers that are
available for both public and in-network accesses
(such as a company's public Web server). Packets
incoming on a DMZ interface—whether from a LAN
or external source—are subject to a level of
protection that is in between those for public and
private interfaces.
RFC 1577 Specifies whether the IPoA protocol to be used
complies with the IEFT specification named “RFC
1577 - Classical IP and ARP over ATM" (contact your
ISP if unsure).