TRENDnet TDM-C400, Руководство пользователя

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TDM-E400 / TDM-C400 ADSL2+ Ethernet Modem Router User’s Manual
62
You can configure the following settings on the PPP Configuration
page:
f
Inactivity TimeOut... : The time in minutes that must
elapse before a PPP connection times-out due to inactivity.
This setting applies only to PPP interfaces that are
configured as “start-on-data” interfaces. This type of
interface starts up only when it receives data, and then
returns to a down state after the specified amount of time
(see the status field on page 64).This setting works with the
following setting to determine what type of data can
activate a start-on-data interface.
f
Ignore WAN to LAN traffic while monitoring inactivity... :
When enabled, data traffic traveling in the incoming
direction—from the WAN interface to the LAN interface—
will not count as activity on the WAN interface for the
purposes of determining whether to make it inactive; i.e.,
incoming traffic will not activate a start-on-data interface.
Only LAN-to-WAN traffic will start the interface.
The PPP Configuration Table displays the following fields:
Field Description
Interface The name of the PPP interface.
VC The virtual circuit over which this PPP data is sent.
The VC identifies the physical path the data takes to
reach your ISP.
Interface Sec Type The type of firewall protections that are in effect on
the interface (public, private, or DMZ):
o
A public interface connects to the Internet (PPP
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.
o
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
set of protections that is in between public and
private interfaces in terms of restrictiveness.
Protocol The type of PPP protocol used. Your ISP may use
PPP-over-Ethernet (PPPoE) or PPP-over-ATM
(PPPoA).
WAN IP
The IP address currently assigned by your ISP to the
interface.
Gateway IP The IP address, provided by your ISP, of the server
that provides you access to the Internet. See “Hops
and gateways” on page 107 for a description of
gateway addresses.