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13-18
Filter Configuration
13.5.2 Remote Node Filters
Go to menu 11.5 (shown next – note that call filter sets are only present for PPPoE encapsulation) and enter
the number(s) of the filter set(s) as appropriate. You can cascade up to four filter sets by entering their
numbers separated by commas. Enter 1 in
protocol filters
under
Output Filter Sets
when using Ethernet
encapsulation, and in the
protocol filters
field under
Call Filter Sets
when using PPPoE or PPTP
encapsulation. Apply them as shown in the following figure.
Figure 13-15 Filtering Remote Node Traffic
Menu 11.5 - Remote Node Filter
Input Filter Sets:
protocol filters=
device filters=
Output Filter Sets:
protocol filters=
device filters=
Call Filter Sets:
protocol filters=
device filters=
Enter here to CONFIRM or ESC to CANCEL:
Apply
factory
default
Filters
here.
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Prestige 324 Intelligent Broadband Sharing Gateway
UPnP
14-1
Chapter 14
UPnP
This chapter introduces the UPnP feature.
14.1 Introducing Universal Plug and Play
Universal Plug and Play (UPnP) is a distributed, open networking standard that uses TCP/IP for simple
peer-to-peer network connectivity between devices. A UPnP device can dynamically join a network, obtain
an IP address, convey its capabilities and learn about other devices on the network. In turn, a device can
leave a network smoothly and automatically when it is no longer in use.
14.1.1 How do I know if I'm using UPnP?
UPnP hardware is identified as an icon in the Network Connections or My Network Places folder
(Windows XP). Each UPnP compatible device installed on your network will appear as a separate icon.
Selecting the icon of a UPnP device will allow you to access the information and properties of that device.
14.1.2 NAT Traversal
UPnP NAT Traversal automates the process of allowing an application to operate through NAT. UPnP
network devices can automatically configure network addressing, announce their presence in the network
to other UPnP devices and enable exchange of simple product and service descriptions. NAT traversal
allows the following:
¾
Dynamic port mapping
¾
Learning public IP addresses
¾
Assigning lease times to mappings
Windows Messenger is an example of an application that supports NAT Transversal and UPnP.
See the Network Address Translation (NAT) chapter for further information about NAT.
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14-2
UPnP
14.1.3 Cautions with UPnP
The automated nature of NAT Transversal applications in establishing their own services and opening
firewall ports may present network security issues. Network information and configuration may also be
obtained and modified by users in some network environments.
All UPnP-enabled devices may communicate freely with each other without additional configuration.
Disable UPnP if this is not your intention.
14.2 UPnP and ZyXEL
ZyXEL has achieved UPnP certification from the Universal Plug and Play Forum Creates UPnP™
Implementers Corp. (UIC). ZyXEL's UPnP implementation supports IGD 1.0 (Internet Gateway Device).
At the time of writing ZyXEL's UPnP implementation supports Windows Messenger 4.6 and 4.7 while
Windows Messenger 5.0 and Xbox are still being tested.
UPnP broadcasts are only allowed on the LAN.
Please see later in this Users Guide for examples of installing UPnP in Windows XP and Windows Me as
well as an example of using UPnP in Windows.
14.2.1 Configuring UPnP
From the
MAIN MENU
click
UPnP
to display the screen shown next.
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Prestige 324 Intelligent Broadband Sharing Gateway
UPnP
14-3
Figure 14-1 Configuring UPnP
Table 14-1 Configuring UPnP
FIELD
DESCRIPTION
Enable the Universal Plug
and Play (UPnP) feature
Select this checkbox to activate UPnP. Be aware that anyone could use a
UPnP application to open the web configurator's login screen without entering
the Prestige's IP address (although you must still enter the password to
access the web configurator).
Allow users to make
configuration changes
through UPnP
Select this check box to allow UPnP-enabled applications to automatically
configure the Prestige so that they can communicate through the Prestige, for
example by using NAT Transversal, UPnP applications automatically reserve
a NAT forwarding port in order to communicate with another UPnP enabled
device; this eliminates the need to manually configure port forwarding for the
UPnP enabled application.
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14-4
UPnP
Table 14-1 Configuring UPnP
FIELD
DESCRIPTION
Allow UPnP to pass
through firewall
Select this check box to create a static LAN to LAN/Prestige rule that allows
forwarding of ports 1900 and 80. Selecting this check box also creates a
dynamic firewall rule every time a NAT forwarding port is reserved for UPnP.
This setting remains active until you disable UPnP or clear this check box.
Clear this check box to have the firewall block all UPnP application packets
(for example, MSN packets) instead of creating a firewall rule for them.
UPNP Name
This identifies the ZyXEL device in UPnP applications.
Apply
Click Apply to save the setting to the Prestige.
Reset
Click Reset to begin configuring this screen afresh.
14.3 Installing UPnP in Windows Example
This section shows how to install UPnP in Windows Me and Windows XP.
Installing UPnP in Windows Me
Follow the steps below to install the UPnP in Windows Me.
9.
Click
Start
and
Control Panel
. Double-click
Add/Remove
Programs
.
10. Click on the
Windows Setup
tab and select
Communication
in
the
Components
selection box. Click
Details
.

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